{"product_id":"airwise-semi-rigid-aluminium-duct-150mm-3m","title":"Airwise Semi-Rigid Aluminium Duct 150mm 3m","description":"\u003cdiv style=\"font-size: 16px; font-family: Arial,sans-serif; color: #222; max-width: 900px; margin: 0 auto; line-height: 1.6;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eAirwise AWSR150X3\u003c\/strong\u003e is a \u003cstrong\u003e150mm diameter, 3-metre length of semi-rigid aluminium ventilation duct\u003c\/strong\u003e. Semi-rigid duct bridges the gap between standard flexible foil duct and rigid PVC or galvanised pipe - it is \u003cstrong\u003econsiderably stronger and more crush-resistant than plain aluminium flex\u003c\/strong\u003e yet can be bent by hand to navigate joists, beams, and other building obstacles, holding the formed shape permanently. The smooth, seamless inner bore keeps pressure drop low, and the duct connects to both round and oval duct systems without specialist tools. Supplied compressed to approximately 0.6m, it extends to the full 3m on site.\u003c\/p\u003e\n\u003cdiv style=\"background: #e6f4f3; border: 1px solid #c8e6e3; border-radius: 6px; padding: 10px 14px; margin: 0 0 18px; font-size: .88em; color: #444;\"\u003e\n\u003cstrong style=\"color: #005c54;\"\u003eAbout Airwise:\u003c\/strong\u003e A leading UK and Ireland ventilation products supplier based in Tetbury, Gloucestershire - known for quality, integrity, and competitive pricing across the full spectrum of ventilation ducting, valves, and accessories.\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: space-around; background: #e6f4f3; border-radius: 6px; padding: 8px 4px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"text-align: center; padding: 12px 8px;\"\u003e\n\u003cdiv style=\"font-size: 1.5em; font-weight: 800; color: #008377;\"\u003e150mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: .82em; color: #444; margin-top: 2px;\"\u003eInternal Diameter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 12px 8px;\"\u003e\n\u003cdiv style=\"font-size: 1.5em; font-weight: 800; color: #008377;\"\u003e3m\u003c\/div\u003e\n\u003cdiv style=\"font-size: .82em; color: #444; margin-top: 2px;\"\u003eExtended Length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 12px 8px;\"\u003e\n\u003cdiv style=\"font-size: 1.5em; font-weight: 800; color: #008377;\"\u003e0.6m\u003c\/div\u003e\n\u003cdiv style=\"font-size: .82em; color: #444; margin-top: 2px;\"\u003eCompressed Length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 12px 8px;\"\u003e\n\u003cdiv style=\"font-size: 1.5em; font-weight: 800; color: #008377;\"\u003eAluminium\/Polyester\u003c\/div\u003e\n\u003cdiv style=\"font-size: .82em; color: #444; margin-top: 2px;\"\u003eConstruction\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 12px 8px;\"\u003e\n\u003cdiv style=\"font-size: 1.5em; font-weight: 800; color: #008377;\"\u003eHand-Bendable\u003c\/div\u003e\n\u003cdiv style=\"font-size: .82em; color: #444; margin-top: 2px;\"\u003eShape-Retaining\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #005c54; padding: 12px 16px; margin: 14px 0; border-radius: 0 4px 4px 0; font-size: .95em;\"\u003e\n\u003cstrong\u003eSemi-Rigid vs Standard Flex:\u003c\/strong\u003e Standard aluminium foil flex is lightweight but easily crushed and does not hold bends. \u003cstrong\u003eSemi-rigid duct holds any bend formed by hand\u003c\/strong\u003e - making it suitable for installations where the duct passes through or behind structures that could compress plain flex, and for runs where the duct needs to hold a specific routing shape long-term.\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #c77a00; padding: 12px 16px; margin: 14px 0; border-radius: 0 4px 4px 0; font-size: .95em;\"\u003e\n\u003cstrong\u003eInstall at Full Extended Length:\u003c\/strong\u003e Always extend semi-rigid duct to \u003cstrong\u003eclose to its natural fully-extended length\u003c\/strong\u003e before fixing in position. A partially compressed section dramatically increases pressure drop and can reduce extract rates below Part F minimums. Avoid tight bends - minimum bend radius should equal the duct diameter.\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; margin: 28px 0 16px; border-radius: 4px; font-size: 1.05em; font-weight: bold; letter-spacing: .3px;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(220px,1fr)); gap: 14px; margin: 16px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377; text-decoration: underline; margin-bottom: 8px;\"\u003eStronger Than Standard Aluminium Flex\u003c\/div\u003e\n\u003cdiv style=\"font-size: .92em; color: #333;\"\u003eThe aluminium\/polyester laminated construction is \u003cstrong\u003esignificantly more rigid and crush-resistant\u003c\/strong\u003e than single-layer plain foil flexible duct - retaining its circular cross-section under normal installation loads and incidental contact after installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377; text-decoration: underline; margin-bottom: 8px;\"\u003eHand-Formed Shape Retention\u003c\/div\u003e\n\u003cdiv style=\"font-size: .92em; color: #333;\"\u003eThe semi-rigid body can be \u003cstrong\u003ebent by hand to navigate around structural obstacles\u003c\/strong\u003e - joists, beams, wall plates, and purlins - holding the formed angle permanently for a stable, professional installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377; text-decoration: underline; margin-bottom: 8px;\"\u003eSmooth Seamless Inner Surface\u003c\/div\u003e\n\u003cdiv style=\"font-size: .92em; color: #333;\"\u003eThe seamless inner bore reduces turbulence and keeps \u003cstrong\u003epressure drop lower than corrugated flexible duct\u003c\/strong\u003e over the same run length - supporting adequate extract rates in longer flexible sections.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377; text-decoration: underline; margin-bottom: 8px;\"\u003eConnects to Round and Oval Duct\u003c\/div\u003e\n\u003cdiv style=\"font-size: .92em; color: #333;\"\u003eCompatible with \u003cstrong\u003eboth standard 150mm round duct fittings and 220×90mm oval duct systems\u003c\/strong\u003e, making it versatile across mixed-format ventilation installations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377; text-decoration: underline; margin-bottom: 8px;\"\u003e3m Compressed to 0.6m\u003c\/div\u003e\n\u003cdiv style=\"font-size: .92em; color: #333;\"\u003eCompresses to just 0.6m for \u003cstrong\u003eeasy transport through access hatches and loft ladders\u003c\/strong\u003e, extending to the full 3m on-site without tools.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377; text-decoration: underline; margin-bottom: 8px;\"\u003eCut to Length Without Special Tools\u003c\/div\u003e\n\u003cdiv style=\"font-size: .92em; color: #333;\"\u003eCan be trimmed to any required length using \u003cstrong\u003etin snips, a hacksaw, or a utility knife\u003c\/strong\u003e - minimising waste and reducing on-site tool requirements.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; margin: 28px 0 16px; border-radius: 4px; font-size: 1.05em; font-weight: bold; letter-spacing: .3px;\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: .92em; margin: 16px 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eAWSR150X3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eAirwise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003e150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eExtended Length\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003e3,000 mm (3 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eCompressed Length\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eApprox. 600 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eConstruction Material\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eAluminium \/ polyester laminate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eInner Surface\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eSmooth, seamless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eColour\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003e150mm round duct, 220x90mm oval duct (with adaptor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; font-weight: 600; color: #333; width: 45%; border-bottom: 1px solid #ddd;\"\u003eTypical Applications\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; color: #555; border-bottom: 1px solid #ddd;\"\u003eFan-to-duct connections, routing through joists and beams, short flexible runs in rigid duct systems, retrofit ceiling void installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; margin: 28px 0 16px; border-radius: 4px; font-size: 1.05em; font-weight: bold; letter-spacing: .3px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #c8e6e3; border-radius: 4px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 11px 14px; cursor: pointer; font-weight: 600; font-size: .95em; list-style: none;\"\u003eWhen should I choose semi-rigid over standard flexible duct?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px; font-size: .92em; color: #333; background: #fff;\"\u003eUse semi-rigid duct where the duct runs through a space where it might be compressed after installation — \u003cstrong\u003ebetween joists, in loft floor spaces, or behind plasterboard\u003c\/strong\u003e. Standard foil flex collapses easily in these situations; semi-rigid maintains its shape and airway under light loads.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #c8e6e3; border-radius: 4px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 11px 14px; cursor: pointer; font-weight: 600; font-size: .95em; list-style: none;\"\u003eIs this duct insulated?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px; font-size: .92em; color: #333; background: #fff;\"\u003eNo — the AWSR150X3 is \u003cstrong\u003enon-insulated\u003c\/strong\u003e. In cold loft spaces or unheated voids where condensation is a concern, either use insulated flex (AWFDI series) for short connection runs, or wrap the semi-rigid section with duct lagging tape after installation to provide a thermal barrier.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #c8e6e3; border-radius: 4px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 11px 14px; cursor: pointer; font-weight: 600; font-size: .95em; list-style: none;\"\u003eWhat is the maximum run length recommended?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px; font-size: .92em; color: #333; background: #fff;\"\u003eKeep individual semi-rigid sections to a \u003cstrong\u003emaximum of 3m\u003c\/strong\u003e (the full roll length). For longer runs, switch to rigid duct — semi-rigid adds more resistance per metre than rigid PVC or galvanised pipe, particularly through bends.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #c8e6e3; border-radius: 4px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 11px 14px; cursor: pointer; font-weight: 600; font-size: .95em; list-style: none;\"\u003eHow do I secure semi-rigid duct to a fan spigot or duct fitting?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px; font-size: .92em; color: #333; background: #fff;\"\u003eUse a \u003cstrong\u003e150mm worm drive duct clip\u003c\/strong\u003e tightened over the duct end on the spigot — minimum 40mm engagement. For MVHR airtight sealing, follow up with aluminium foil tape over the joint.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #c8e6e3; border-radius: 4px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 11px 14px; cursor: pointer; font-weight: 600; font-size: .95em; list-style: none;\"\u003eCan this duct be used in MVHR systems?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px; font-size: .92em; color: #333; background: #fff;\"\u003eYes, for short connection and routing sections. For the main distribution runs, use rigid duct for lowest resistance. \u003cstrong\u003eSemi-rigid duct is ideal for the final connection\u003c\/strong\u003e from main duct to the MVHR unit spigot, or for navigating specific obstacles within a predominantly rigid system.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"AirWise Ventilation","offers":[{"title":"Default Title","offer_id":64801819132253,"sku":"AWSR150X3","price":18.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/AirwiseAWSR160X3Semi-RigidAluminiumDuct160mm3m.jpg?v=1779859811","url":"https:\/\/qualityheating.co.uk\/products\/airwise-semi-rigid-aluminium-duct-150mm-3m","provider":"AIZO Quality Heating","version":"1.0","type":"link"}