{"product_id":"potterton-system-expansion-vessel-6l-720759301","title":"Potterton 6 Litre System Expansion Vessel – Refurbished | MPN 720759301","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEvery sealed central heating system relies on a carefully balanced pressure environment — and the \u003cstrong\u003ePotterton 6 Litre Expansion Vessel (MPN 720759301)\u003c\/strong\u003e is the component responsible for maintaining exactly that. As water heats up and expands within your system, this vessel quietly absorbs the excess pressure, preventing dangerous build-up that could otherwise stress your boiler's internal components and lead to premature failure.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eProfessionally refurbished and pressure-tested to meet original manufacturer standards, this is a genuine Potterton part recovered from a fully operational boiler — not an aftermarket imitation. It's the same quality, the same fit, and the same performance, at a significantly reduced cost.\u003c\/p\u003e\n\u003cp\u003eManufacturer Part Number: \u003cstrong\u003e720759301\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: \u003cstrong\u003e6 Litres\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCondition: \u003cstrong\u003eRefurbished\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eComes with \u003cstrong\u003e12 months warranty\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for Potterton system boilers\u003c\/li\u003e\n\u003cli\u003eSKU: EXP-2722-A-BC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatible Boilers\u003c\/h3\u003e\n\u003ctable style=\"width: 100.036%; height: 117.6px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 51.7799%; height: 19.6px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"width: 48.0043%; height: 19.6px;\"\u003eGC Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 51.7799%; height: 19.6px;\"\u003eSystem 12kW\u003c\/td\u003e\n\u003ctd style=\"width: 48.0043%; height: 19.6px;\"\u003e41-592-71\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 51.7799%; height: 19.6px;\"\u003eSystem 15kW\u003c\/td\u003e\n\u003ctd style=\"width: 48.0043%; height: 19.6px;\"\u003e41-592-72\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 51.7799%; height: 19.6px;\"\u003eSystem 18kW\u003c\/td\u003e\n\u003ctd style=\"width: 48.0043%; height: 19.6px;\"\u003e41-592-73\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 51.7799%; height: 19.6px;\"\u003eSystem 24kW\u003c\/td\u003e\n\u003ctd style=\"width: 48.0043%; height: 19.6px;\"\u003e41-592-74\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 51.7799%; height: 19.6px;\"\u003eSystem 28kW\u003c\/td\u003e\n\u003ctd style=\"width: 48.0043%; height: 19.6px;\"\u003e41-592-75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhy Choose This Product?\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eBuilt to Protect. Restored to Perform.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA failing expansion vessel doesn't just affect pressure — it puts your entire heating system at risk. Unchecked pressure fluctuations can damage heat exchangers, valves, and seals, turning a simple part replacement into a far more expensive repair. This refurbished Potterton vessel steps in as a direct like-for-like replacement, restoring your system's pressure balance and helping your boiler operate efficiently across every heating cycle.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eEach unit undergoes rigorous pressure testing before dispatch, ensuring it arrives ready to install and perform from day one. Backed by a \u003cstrong\u003e12-month warranty\u003c\/strong\u003e, you can fit it with complete confidence.\u003c\/p\u003e\n\u003ch3\u003eDelivery \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eOrder before \u003cstrong\u003e3:00 PM\u003c\/strong\u003e for same-day dispatch. Returns accepted within \u003cstrong\u003e30 days\u003c\/strong\u003e, provided the part is unused and in its original packaging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Always verify \u003cstrong\u003eMPN 720759301\u003c\/strong\u003e against your existing part before ordering. Installation must be completed by a \u003cstrong\u003eGas Safe registered engineer\u003c\/strong\u003e to ensure safety compliance and warranty validity.\u003c\/p\u003e","brand":"Potterton","offers":[{"title":"Refurbished","offer_id":47897589514405,"sku":"EXP-2722-A-BC","price":29.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1690\/8453\/files\/Frame8.png?v=1781625736","url":"https:\/\/ephsuppliers.com\/products\/potterton-system-expansion-vessel-6l-720759301","provider":"Elite Plumbing \u0026 Heating Suppliers Ltd","version":"1.0","type":"link"}