{"product_id":"grundfos-home-booster-4-5-bar-water-booster-set-md450200-wras","title":"Grundfos Home Booster 4.5 Bar Water Booster Set | MD450200 | WRAS","description":"\u003c!-- SEO Product Name: Grundfos Home Booster 4.5 Bar Water Booster Set | MD450200 | WRAS --\u003e\n\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #222; line-height: 1.6;\"\u003e\n\u003cp style=\"margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eGrundfos Home Booster\u003c\/strong\u003e is a \u003cstrong\u003eself-contained cold water booster set\u003c\/strong\u003e for domestic properties where the mains supply cannot meet the demand of a pressurised hot and cold water system. It combines a \u003cstrong\u003estainless steel Grundfos CM pump\u003c\/strong\u003e, an \u003cstrong\u003eintegral 200 litre storage tank (180 litres usable)\u003c\/strong\u003e with a \u003cstrong\u003eType AB air gap\u003c\/strong\u003e, and a \u003cstrong\u003ePM2 Pressure Manager\u003c\/strong\u003e controller in one \u003cstrong\u003epackaged set, ready for installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px 0;\"\u003eTwo models are available. The \u003cstrong style=\"color: #222;\"\u003e3.0 Bar Water Booster Set (MD300200)\u003c\/strong\u003e is fitted with a \u003cstrong\u003eCM 3-4 I pump\u003c\/strong\u003e and delivers \u003cstrong\u003e3.0 bar at 0.5 l\/s\u003c\/strong\u003e. The \u003cstrong\u003e4.5 Bar Water Booster Set (MD450200)\u003c\/strong\u003e is fitted with a \u003cstrong\u003eCM 3-6 I pump\u003c\/strong\u003e and delivers \u003cstrong\u003e4.5 bar at 0.5 l\/s\u003c\/strong\u003e. Both suit \u003cstrong\u003emost homes with one or two standard bathrooms\u003c\/strong\u003e, or an en-suite and cloakroom, plus normal household appliances.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003ecompact footprint\u003c\/strong\u003e makes it ideal where space is at a premium, typically a \u003cstrong\u003eutility room or garage\u003c\/strong\u003e. Installation needs only the mains cold water supply, discharge pipe, overflow pipe and a \u003cstrong\u003eplug-in electrical connection\u003c\/strong\u003e, and the wetted components are \u003cstrong\u003eWRAS approved\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #008377CF; color: #ffffff; border-radius: 8px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e3.0 \/ 4.5 bar\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eNominal pressure at 0.5 l\/s\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #008377CF; color: #ffffff; border-radius: 8px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e180 L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eUsable storage (200 L tank)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #008377CF; color: #ffffff; border-radius: 8px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003eType AB\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eAir gap tank\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #008377CF; color: #ffffff; border-radius: 8px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e65 dB(A)\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eSound pressure level\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #008377CF; color: #ffffff; border-radius: 8px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e240V\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003e1 phase, 50Hz\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #008377CF; color: #ffffff; border-radius: 8px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003eWRAS\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eApproved components\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #c62828; background: #fdecea; border-radius: 6px; padding: 12px 16px; margin: 12px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #c62828; margin-bottom: 4px;\"\u003eWater Regulations\u003c\/div\u003e\n\u003cdiv style=\"color: #222; line-height: 1.55;\"\u003eThe tank is fitted with a \u003cstrong\u003eType AB air gap\u003c\/strong\u003e in accordance with the Water Byelaws. Any \u003cstrong\u003ebypass arrangement must be installed strictly in accordance with the Water Byelaws Regulations\u003c\/strong\u003e and drained when not in use to prevent stagnation. A bypass must not be installed when pumping a non-potable CAT 5 contaminated liquid. Electrical connection and any new supply should be carried out by a competent person in line with \u003cstrong\u003eBS 7671\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #e08a00; background: #fff4e0; border-radius: 6px; padding: 12px 16px; margin: 12px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #e08a00; margin-bottom: 4px;\"\u003eSiting and sizing\u003c\/div\u003e\n\u003cdiv style=\"color: #222; line-height: 1.55;\"\u003e\n\u003cstrong\u003eNot recommended for loft or attic installation.\u003c\/strong\u003e Install in a dry, well ventilated, frost-free position on a \u003cstrong\u003esolid, level, flat base\u003c\/strong\u003e that can carry the weight of the full tank (up to 246 kg), with \u003cstrong\u003e0.5 m clearance on the right-hand side and above\u003c\/strong\u003e for servicing. For larger properties the manufacturer recommends the \u003cstrong\u003eGrundfos Max-E Boost\u003c\/strong\u003e; fitting two Home Boosters together to increase flow is not recommended.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #008377CF; background: #e6f2f1; border-radius: 6px; padding: 12px 16px; margin: 12px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003eChoosing your model\u003c\/div\u003e\n\u003cdiv style=\"color: #222; line-height: 1.55;\"\u003eThe \u003cstrong\u003eMD300200\u003c\/strong\u003e duty is \u003cstrong\u003e3.0 bar at 0.5 l\/s\u003c\/strong\u003e or \u003cstrong\u003e2 bar at 0.8 l\/s\u003c\/strong\u003e. The \u003cstrong\u003eMD450200\u003c\/strong\u003e duty is \u003cstrong\u003e4.5 bar at 0.5 l\/s\u003c\/strong\u003e or \u003cstrong\u003e3 bar at 0.8 l\/s\u003c\/strong\u003e. Discharge pressure can be regulated with a separate pressure reducing valve if required, and the PM2 cut-in pressure is adjustable in \u003cstrong\u003e0.5 bar steps\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 32px 0 12px 0; font-size: 22px; color: #008377cf; border-bottom: 3px solid #008377CF; padding-bottom: 6px;\"\u003eKey Features\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 250px; border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; background: #ffffff;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 9px 14px; font-weight: bold;\"\u003eIntegral 200 L Storage Tank\u003c\/div\u003e\n\u003cdiv style=\"padding: 12px 14px; line-height: 1.55; color: #222;\"\u003e\n\u003cstrong\u003e200 litre polypropylene tank\u003c\/strong\u003e with \u003cstrong\u003e180 litres usable volume\u003c\/strong\u003e and a Type AB air gap. A \u003cstrong\u003e2 inch BSPF connection\u003c\/strong\u003e at the rear allows an optional 180 litre slave tank to be added.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 250px; border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; background: #ffffff;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 9px 14px; font-weight: bold;\"\u003eStainless Steel CM Pump\u003c\/div\u003e\n\u003cdiv style=\"padding: 12px 14px; line-height: 1.55; color: #222;\"\u003e\n\u003cstrong\u003e304 grade stainless steel wetted parts\u003c\/strong\u003e for high efficiency, sustained performance, long working life and \u003cstrong\u003equiet operation\u003c\/strong\u003e. CM 3-4 I (3.0 bar) or CM 3-6 I (4.5 bar).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 250px; border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; background: #ffffff;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 9px 14px; font-weight: bold;\"\u003ePM2 Pressure Manager\u003c\/div\u003e\n\u003cdiv style=\"padding: 12px 14px; line-height: 1.55; color: #222;\"\u003e\n\u003cstrong\u003eElectronic on\/off control\u003c\/strong\u003e with a pressure transducer and flow switch. Indicators show \u003cstrong\u003epressure, pump status and fault\u003c\/strong\u003e, with a reset button on the controller.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 250px; border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; background: #ffffff;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 9px 14px; font-weight: bold;\"\u003ePump Protection\u003c\/div\u003e\n\u003cdiv style=\"padding: 12px 14px; line-height: 1.55; color: #222;\"\u003eThe PM2 provides \u003cstrong\u003edry run protection\u003c\/strong\u003e if the tank runs out of water, and also protects the pump if it becomes \u003cstrong\u003eair locked or seized\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 250px; border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; background: #ffffff;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 9px 14px; font-weight: bold;\"\u003e8 Litre Pressure Vessel\u003c\/div\u003e\n\u003cdiv style=\"padding: 12px 14px; line-height: 1.55; color: #222;\"\u003eAn \u003cstrong\u003eintegral 8 litre pressure vessel\u003c\/strong\u003e with a butyl rubber diaphragm maintains pressure while the pump is off, preventing \u003cstrong\u003eunnecessary starts\u003c\/strong\u003e on small draw-offs.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 250px; border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; background: #ffffff;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 9px 14px; font-weight: bold;\"\u003ePackaged and Ready to Fit\u003c\/div\u003e\n\u003cdiv style=\"padding: 12px 14px; line-height: 1.55; color: #222;\"\u003e\n\u003cstrong\u003eSupplied as a complete set\u003c\/strong\u003e with a 5 m mains cable and \u003cstrong\u003e5A fused plug\u003c\/strong\u003e. Connections are mains cold water, 22 mm discharge, 22 mm overflow and power. \u003cstrong\u003eWRAS approved components\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 32px 0 12px 0; font-size: 22px; color: #008377cf; border-bottom: 3px solid #008377CF; padding-bottom: 6px;\"\u003eModel Comparison\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; margin: 12px 0;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #008377CF; color: #ffffff; font-weight: bold;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 10px 14px;\"\u003eSpecification\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 10px 14px;\"\u003e3.0 Bar\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 10px 14px;\"\u003e4.5 Bar\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eManufacturer part number\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003eMD300200\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003eMD450200\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003ePump\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003eGrundfos CM 3-4 I\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003eGrundfos CM 3-6 I\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eNominal duty\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e3.0 bar at 0.5 l\/s\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e4.5 bar at 0.5 l\/s\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eSecond duty point\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e2 bar at 0.8 l\/s\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e3 bar at 0.8 l\/s\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eMax closed valve pressure\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e3.6 bar\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e5.6 bar\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eInput power\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e588 W\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e870 W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eFull load current\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e2.80 A\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e4.00 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eDry weight\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e63 kg\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e66 kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eWet weight\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e243 kg\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e246 kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1.2 1 180px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e65 kg\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 150px; padding: 9px 14px; color: #222;\"\u003e68 kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 32px 0 12px 0; font-size: 22px; color: #008377cf; border-bottom: 3px solid #008377CF; padding-bottom: 6px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #008377CF; border-radius: 8px; overflow: hidden; margin: 12px 0;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003eStorage\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eTank capacity\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e200 litres nominal, 180 litres usable\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eTank material\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003ePolypropylene\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eAir gap\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eType AB, in accordance with Water Byelaws\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eSlave tank option\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e180 litre slave tank (MCST0200) via 2 inch BSPF connection at the rear\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003ePressure vessel\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e8 litres, steel body with butyl rubber diaphragm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003eControls\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eController\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eGrundfos PM2 Pressure Manager, on\/off\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eIndicators\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003ePressure, pump status and fault, with reset button\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eCut-in pressure\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eSet by DIP switches in 0.5 bar steps\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eProtection\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eDry run, air lock and seized pump\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003eElectrical\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eSupply\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e1 phase, 240V, 50Hz\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eStarting current\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e15.6 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eCapacitor rating\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e20 uF \/ 400V\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eMains cable\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e5 m, 1.5 mm², 3 core, with 5A fused plug\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003eConnections\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eMains cold water\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e1\/2 inch BSPM\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eDischarge\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e22 mm push fit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eOverflow\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e22 mm solvent weld\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eSlave tank\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e2 inch BSPF\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003eMaterials\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003ePump wetted parts\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eStainless steel, 304 grade\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003ePipework fittings\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eBrass \/ copper\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eInternal pipework\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eCopper\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003eOperating Conditions\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eLiquid temperature\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e+3 to +40 °C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eAmbient temperature\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eUp to +40 °C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eRelative humidity\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eUp to 95 % non-condensing\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eMaximum inlet pressure\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e6 bar\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eSound pressure level\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e65 dB(A)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 9px 14px;\"\u003ePhysical and Approvals\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eOverall dimensions (H x W x D)\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003e1,000 x 600 x 600 mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #ffffff; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eInstallation\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eFloor standing, utility room or garage; not for loft or attic\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; background: #f3f8f7; border-bottom: 1px solid #d6e4e2;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; padding: 9px 14px; font-weight: bold; color: #1d3b38;\"\u003eApprovals\u003c\/div\u003e\n\u003cdiv style=\"flex: 2 1 280px; padding: 9px 14px; color: #222;\"\u003eWRAS approved wetted components\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 32px 0 12px 0; font-size: 22px; color: #008377cf; border-bottom: 3px solid #008377CF; padding-bottom: 6px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails style=\"border: 2px solid #008377CF; border-radius: 8px; margin: 10px 0; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 11px 16px; font-weight: bold; cursor: pointer;\"\u003eWhat is the difference between the MD300200 and the MD450200?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; line-height: 1.6; color: #222;\"\u003eThe \u003cstrong\u003eMD300200\u003c\/strong\u003e uses a \u003cstrong\u003eCM 3-4 I pump\u003c\/strong\u003e for a nominal \u003cstrong\u003e3.0 bar at 0.5 l\/s\u003c\/strong\u003e, while the \u003cstrong\u003eMD450200\u003c\/strong\u003e uses a \u003cstrong\u003eCM 3-6 I pump\u003c\/strong\u003e for a nominal \u003cstrong\u003e4.5 bar at 0.5 l\/s\u003c\/strong\u003e. The tank, controller, connections and footprint are the same. The 4.5 bar model draws more power (870 W against 588 W) and is slightly heavier.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 2px solid #008377CF; border-radius: 8px; margin: 10px 0; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 11px 16px; font-weight: bold; cursor: pointer;\"\u003eWhat size of property is the Home Booster suitable for?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; line-height: 1.6; color: #222;\"\u003eIt suits \u003cstrong\u003emost domestic properties with one or two standard bathrooms\u003c\/strong\u003e with standard fittings, or an en-suite and cloakroom, plus other normal household appliances. For larger properties the manufacturer recommends the \u003cstrong\u003eGrundfos Max-E Boost\u003c\/strong\u003e, and installing two Home Boosters together to increase flow is not recommended.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 2px solid #008377CF; border-radius: 8px; margin: 10px 0; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 11px 16px; font-weight: bold; cursor: pointer;\"\u003eCan I increase the water storage?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; line-height: 1.6; color: #222;\"\u003eYes. An optional \u003cstrong\u003e180 litre slave tank (MCST0200)\u003c\/strong\u003e connects to the \u003cstrong\u003e2 inch BSPF connection\u003c\/strong\u003e at the rear of the tank. It is recommended for \u003cstrong\u003eproperties with 4 to 5 occupants\u003c\/strong\u003e, or where the tank refills slowly because of poor mains water pressure.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 2px solid #008377CF; border-radius: 8px; margin: 10px 0; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 11px 16px; font-weight: bold; cursor: pointer;\"\u003eWhere can the Home Booster be installed?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; line-height: 1.6; color: #222;\"\u003eSite it in a \u003cstrong\u003edry, well ventilated, frost-free position\u003c\/strong\u003e such as a utility room or garage, on a \u003cstrong\u003esolid, level, flat surface\u003c\/strong\u003e that can support the weight of the water tank. Allow \u003cstrong\u003e0.5 m clearance on the right-hand side and above\u003c\/strong\u003e. It is \u003cstrong\u003enot recommended for a loft or attic\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 2px solid #008377CF; border-radius: 8px; margin: 10px 0; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 11px 16px; font-weight: bold; cursor: pointer;\"\u003eHow does the PM2 controller protect the pump?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; line-height: 1.6; color: #222;\"\u003eThe \u003cstrong\u003ePM2 Pressure Manager\u003c\/strong\u003e starts the pump when pressure falls to the cut-in setting and stops it shortly after flow ceases. It provides \u003cstrong\u003edry run protection\u003c\/strong\u003e if the tank runs out of water and protects the pump if it becomes \u003cstrong\u003eair locked or seized\u003c\/strong\u003e. Indicators show pressure, pump status and fault, with a reset button.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 2px solid #008377CF; border-radius: 8px; margin: 10px 0; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 11px 16px; font-weight: bold; cursor: pointer;\"\u003eWhat connections are needed to install it?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; line-height: 1.6; color: #222;\"\u003eYou need the \u003cstrong\u003emains cold water supply (1\/2 inch BSPM)\u003c\/strong\u003e, a \u003cstrong\u003e22 mm push fit discharge\u003c\/strong\u003e, a \u003cstrong\u003e22 mm solvent weld overflow\u003c\/strong\u003e and a \u003cstrong\u003e240V power supply\u003c\/strong\u003e via the supplied 5 m cable with 5A fused plug. Any bypass must be fitted in accordance with the Water Byelaws Regulations.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":68375282123142,"sku":"MD450200","price":1995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/md300200GrundfosHomeBoosterUnit3bar.webp?v=1763734916","url":"https:\/\/qualityheating.co.uk\/fr\/products\/grundfos-home-booster-4-5-bar-water-booster-set-md450200-wras","provider":"AIZO Quality Heating","version":"1.0","type":"link"}