{"product_id":"sentinel-x300-universal-cleaner-1-litre-new-system-flux-debris-removal","title":"Sentinel X300 Universal Cleaner 1 Litre - New System Flux \u0026 Debris Removal","description":"\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X300 Universal Cleaner\u003c\/strong\u003e (MPN \u003cstrong\u003eX300\u003c\/strong\u003e) is a powerful, heavy-duty cleaner specifically designed for \u003cstrong\u003enew central heating systems up to six months old\u003c\/strong\u003e, where installation debris such as flux residue, swarf, and manufacturing grease can hinder even heat distribution. Circulated at first fill, X300 \u003cstrong\u003epassivates metal surfaces and prevents harmful copper deposition\u003c\/strong\u003e, preparing the system properly for long-term protection with Sentinel X100 Inhibitor.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Hour\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eMin Circulation Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 10 Radiators\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e~6.7\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eConcentrate pH\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e-14°C\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFreezing Point\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eBS 7593\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCompliance\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #c0392b; background-color:#fdecea; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#c0392b;\"\u003eNew Systems Only\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eSentinel X300 is \u003cstrong\u003eonly suitable for heating systems up to 6 months old\u003c\/strong\u003e. Older or existing systems should instead be cleaned with \u003cstrong\u003eSentinel X400 or Sentinel X800\u003c\/strong\u003e, which are formulated for established sludge and debris rather than fresh installation contamination.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eBS 7593 Compliance\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eBest practice, reflected in guidance such as the \u003cstrong\u003eUK Building Regulations Part L Domestic Heating Compliance Guide\u003c\/strong\u003e, is that a new central heating system should be thoroughly cleaned and flushed before commissioning. Systems should be \u003cstrong\u003ecleaned in accordance with BS 7593\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eCirculation Window\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eCirculate for a \u003cstrong\u003eminimum of 1 hour, up to a maximum of 24 hours\u003c\/strong\u003e, at normal operating temperature with all valves open. The system should be \u003cstrong\u003eflushed with clean water immediately after use\u003c\/strong\u003e, and not left circulating indefinitely.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRemoves Installation Debris\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eFlushes out \u003cstrong\u003eswarf, flux residue, grit, sand and manufacturing grease\u003c\/strong\u003e commonly introduced during the installation of a new central heating system.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrevents Copper Deposition\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eHelps \u003cstrong\u003eprevent harmful copper deposits\u003c\/strong\u003e being left in the system, a frequent cause of severe pin-hole corrosion in radiators further down the line.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eEliminates Corrosive Flux Residue\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eRemoves \u003cstrong\u003ecorrosive flux residues\u003c\/strong\u003e from soldered joints that could otherwise give rise to rapid pin-holing corrosion if left in circulation.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePassivates Metal Surfaces\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eAs it cleans, X300 \u003cstrong\u003epassivates the metal surfaces\u003c\/strong\u003e of the system, helping protect components as the system is prepared for inhibitor treatment.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrepares System for X100\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDesigned as the \u003cstrong\u003eideal preparation step before Sentinel X100 Inhibitor\u003c\/strong\u003e, ensuring the inhibitor is protecting genuinely clean surfaces rather than sealing in installation debris.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSuitable for Aluminium Systems\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003eneutral formulation\u003c\/strong\u003e safe for use in all types of indirect heating system, including those with aluminium components.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X300 Universal Cleaner (New System Cleaner)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX300\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eTechnical Data\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMinimum Circulation Period\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 hour\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMaximum Circulation Period\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e24 hours (do not exceed)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003epH (Concentrate)\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eApprox. 6.7\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eFreezing Point\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e-14°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eVolume\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 L\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage \u0026amp; Application\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per typical domestic system of up to 10 radiators\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSuitable Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNew systems, or those up to 6 months old\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eCirculation Conditions\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNormal operating temperature, all valves open\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePost-Use\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eFlush system with clean water immediately after use\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCompliance \u0026amp; Compatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Referenced\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eBS 7593\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect heating system, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNext Step\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003ePrepare system for Sentinel X100 Inhibitor\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eCan I use X300 on an older, existing system?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. Sentinel X300 is \u003cstrong\u003eonly suitable for systems up to 6 months old\u003c\/strong\u003e. Existing systems should be cleaned with \u003cstrong\u003eSentinel X400 or Sentinel X800\u003c\/strong\u003e instead.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long should I circulate X300 for?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eCirculate for a \u003cstrong\u003eminimum of 1 hour\u003c\/strong\u003e at normal operating temperature with all valves open, up to a \u003cstrong\u003emaximum of 24 hours\u003c\/strong\u003e. Flush the system with clean water immediately afterwards.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat does X300 actually remove?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt removes \u003cstrong\u003einstallation debris including flux residue, swarf, grit, sand and manufacturing grease\u003c\/strong\u003e left over from the installation process.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDo I need anything after using X300?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes. After flushing, the system should be treated with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e to provide ongoing corrosion and scale protection.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X300 do I need?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre treats a typical domestic system of up to 10 radiators\u003c\/strong\u003e. Larger systems require proportionally more product.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs X300 compliant with UK best practice guidance?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, it is designed to support \u003cstrong\u003ecleaning in accordance with BS 7593\u003c\/strong\u003e and the UK Building Regulations Part L Domestic Heating Compliance Guide.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65282973958493,"sku":"X300","price":17.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX300UniversalCleaner1Litre-NewSystemFlux_DebrisRemoval.jpg?v=1784303959","url":"https:\/\/qualityheating.co.uk\/products\/sentinel-x300-universal-cleaner-1-litre-new-system-flux-debris-removal","provider":"AIZO Quality Heating","version":"1.0","type":"link"}