{"product_id":"potterton-promax-ultra-24-combi-expansion-vessel-8-litre-brand-new-or-refurbished-mpn-720753901","title":"Potterton Promax Ultra 24 Combi Expansion Vessel 8 Litre – Brand New or Refurbished | MPN 720753901","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA heating system is only as reliable as the components keeping its pressure in check — and the \u003cstrong\u003ePotterton Promax Ultra 24 Combi Expansion Vessel (MPN 720753901)\u003c\/strong\u003e is one of the most critical of them all. Every time your boiler fires up, water expands as it heats through the sealed circuit. This vessel absorbs that expansion quietly and continuously, preventing pressure spikes from placing destructive stress on your boiler's valves, seals, and heat exchangers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFitting directly into the \u003cstrong\u003ePotterton Promax Ultra 24 Combi\u003c\/strong\u003e as a precise like-for-like replacement, this \u003cstrong\u003e8-litre vessel\u003c\/strong\u003e gets your system's pressure management back on track from the moment it's installed — with no modifications and no guesswork required.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePotterton Promax Ultra 24 Combi Expansion Vessel\u003c\/li\u003e\n\u003cli\u003ePart Number: 720753901\u003c\/li\u003e\n\u003cli\u003eAvailable in Brand New or Refurbished condition\u003c\/li\u003e\n\u003cli\u003eComes with 12-months warranty\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003eCompatible with Potterton Promax Ultra ERP boiler models\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eGC Number:\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003ctable style=\"width: 100.038%; height: 196px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 77.644%; height: 19.6px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"width: 19.7073%; 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: 77.644%; height: 19.6px;\"\u003ePromax Ultra 24 Combi ERP (Serial No Ending AC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-54 AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 24 Combi ERP (Serial No Ending BC \u0026amp; CC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-54 BC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 24 Combi ERP (Serial No Ending DC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-54 DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 28 Combi ERP (Serial No Ending AC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-55 AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 28 Combi ERP (Serial No Ending BC \u0026amp; CC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-55 BC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 28 Combi ERP (Serial No Ending DC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-55 DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 33 Combi ERP (Serial No Ending AC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-56 AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 33 Combi ERP (Serial No Ending BC \u0026amp; CC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-56 BC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 77.644%; height: 19.6px;\"\u003ePromax Ultra 40 Combi ERP (Serial No Ending AC)\u003c\/td\u003e\n\u003ctd style=\"width: 19.7073%; height: 19.6px;\"\u003e47-393-57 AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eDelivery \u0026amp; Returns\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOrders placed before \u003cstrong\u003e3:00 PM\u003c\/strong\u003e are dispatched the same working day via trusted couriers, with both \u003cstrong\u003estandard\u003c\/strong\u003e and \u003cstrong\u003enext working day delivery\u003c\/strong\u003e options available at checkout. Returns accepted within \u003cstrong\u003e30 days\u003c\/strong\u003e, provided the part is unused and in its original packaging.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please confirm that \u003cstrong\u003eMPN 720753901\u003c\/strong\u003e matches your existing part before placing your order. Installation must always be carried out by a \u003cstrong\u003eGas Safe registered engineer\u003c\/strong\u003e to ensure safety compliance and warranty validity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Potterton","offers":[{"title":"Refurbished","offer_id":47929686098085,"sku":null,"price":26.98,"currency_code":"GBP","in_stock":true},{"title":"Brand New","offer_id":47929686130853,"sku":null,"price":32.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1690\/8453\/files\/Frame31.png?v=1781801958","url":"https:\/\/ephsuppliers.com\/products\/potterton-promax-ultra-24-combi-expansion-vessel-8-litre-brand-new-or-refurbished-mpn-720753901","provider":"Elite Plumbing \u0026 Heating Suppliers Ltd","version":"1.0","type":"link"}