{"product_id":"ariston-kit-a-expansion-vessel-non-return-valve","title":"Ariston Kit A Expansion Vessel \u0026 Non-Return Valve","description":"\u003cp\u003e\u003cstrong\u003eAriston Kit A Expansion Vessel \u0026amp; Non-Return Valve\u003c\/strong\u003e. Accommodate expansion in a compatible unvented water heater installation. A useful accessory to identify by its product code when planning the heater installation or replacing the corresponding component.\u003c\/p\u003e\u003ch2\u003eWhat this accessory does\u003c\/h2\u003e\u003cp\u003eThe expansion vessel provides space for heated water to expand, while the non-return valve helps prevent backflow towards the cold water supply. These are distinct functions that need to be considered as part of the complete installation.\u003c\/p\u003e\u003ch2\u003eCheck the complete installation before ordering\u003c\/h2\u003e\u003cp\u003eAriston lists this accessory in the installation guidance for Andris water heaters. Your installer should confirm compatibility, connections and whether this kit is required for your particular model and plumbing arrangement. Do not assume every Ariston heater uses the same fittings.\u003c\/p\u003e\u003cp\u003eSome heater packages already include Kits A, B and C. Check the contents of your chosen product code before ordering accessories separately, especially when buying a 30L Andris model. If you are replacing an existing component, send us its markings and the heater’s model details so we can help check the product information.\u003c\/p\u003e\u003ch2\u003eProduct specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eAriston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer part number\u003c\/th\u003e\n\u003ctd\u003e406801\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAccessory\u003c\/th\u003e\n\u003ctd\u003eExpansion vessel and non-return valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eCompatible Ariston water heater installations; installer confirmation required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eChoose with confidence at Heatraq\u003c\/h2\u003e\u003cp\u003eCompare \u003ca href=\"\/collections\/point-of-use-water-heaters\"\u003epoint-of-use water heaters\u003c\/a\u003e, or visit our \u003ca href=\"\/pages\/help-advice\"\u003eHelp \u0026amp; Advice page\u003c\/a\u003e for ways to contact us and the details to have ready. If you are unsure which model to order, send us the product code and tell us how you plan to use it. We can help with product information before you buy; your installer should confirm the installation requirements.\u003c\/p\u003e","brand":"Ariston","offers":[{"title":"Default Title","offer_id":57535893635398,"sku":"ARIS406801","price":60.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/5975\/0726\/files\/ariston-kit-a-expansion-vessel-non-return-valve.jpg?v=1791473266","url":"https:\/\/heatraq.co.uk\/products\/ariston-kit-a-expansion-vessel-non-return-valve","provider":"Heatraq","version":"1.0","type":"link"}