{"product_id":"worcester-bosch-boiler-filling-key-both-large-and-small-87161211071","title":"Worcester Bosch Boiler Filling Key - Both Large And Small 87161211070","description":"\u003ch1\u003e\u003cspan\u003eWorcester Bosch Boiler Filling Key – Both Large and Small 87161211070\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWorcester Bosch Boiler Filling Key (Large \u0026amp; Small) 87161211070\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a replacement boiler servicing accessory designed for use with compatible Worcester Bosch heating systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis filling key allows the user or engineer to access the boiler's internal filling connection, helping to refill and re-pressurise the sealed heating system when required. The kit includes both large and small filling keys, providing compatibility with different filling connections used across selected Worcester Bosch boilers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMaintaining the correct system pressure is important for reliable boiler performance, and the correct filling key helps ensure the filling procedure can be carried out correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eℹ️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eProduct Condition Options:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis part may be available in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNew or Refurbished\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e condition. Please check the available options from the dropdown menu.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Insight \u0026amp; Common Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA boiler filling key is used with compatible internal filling systems to allow water to be added to a sealed central heating circuit. This helps restore system pressure when it drops below the recommended operating level.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTypical reasons for using a replacement filling key include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eOriginal filling key lost or damaged\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDifficulty accessing the boiler filling connection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoutine boiler maintenance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRe-pressurising the heating system after pressure loss\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacing a worn or broken filling accessory\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis product is a servicing accessory and does not replace the boiler filling valve or filling loop assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eManufacturer Part Number (MPN): 87161211070\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis filling key is designed for selected models within the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWorcester Bosch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCompatible appliance references include selected Worcester models such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWorcester 24CDi\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorcester 26 CDI Xtra\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorcester 28CDi\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorcester 35CDi II\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorcester 15 SBI\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorcester 24 SBI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCompatibility may vary depending on the exact boiler model and filling system fitted.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePlease strictly verify the manufacturer part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e87161211070\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e against your boiler's technical manual, exploded parts diagram, or existing component before ordering to guarantee correct fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSafety Advice\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBoiler filling components are part of the sealed heating system. Always follow the manufacturer's instructions when re-pressurising a boiler. Installation or servicing of boiler components should be carried out by a suitably qualified heating engineer where required.\u003c\/span\u003e\u003c\/p\u003e","brand":"National Boiler Spares","offers":[{"title":"Default Title","offer_id":44364758745191,"sku":"N0803","price":7.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/0923\/8887\/files\/N0803_2.jpg?v=1786015175","url":"https:\/\/nationalboilerspares.co.uk\/products\/worcester-bosch-boiler-filling-key-both-large-and-small-87161211071","provider":"National Boiler Spares","version":"1.0","type":"link"}