{"product_id":"tesla-immersion-heater-fibre-sealing-washer-2-1-4-inch-bsp-replacement-seal","title":"Tesla Immersion Heater Fibre Sealing Washer 2.1\/4 inch BSP Replacement Seal","description":"\u003c!-- SEO Product Name: Tesla Immersion Heater Fibre Sealing Washer 2.1\/4 inch BSP Replacement Seal --\u003e\n\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; color: #2b2b2b; line-height: 1.6; font-family: Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #2b2b2b; margin: 0 0 16px 0;\"\u003eThe \u003cstrong\u003eTesla Immersion Heater Fibre Washer\u003c\/strong\u003e is a genuine \u003cstrong\u003e2-1\/4\" BSP\u003c\/strong\u003e replacement sealing washer for use when fitting or replacing a standard domestic immersion heater. It creates a watertight seal between the heater boss and the cylinder thread, and should always be renewed whenever an immersion heater is removed and refitted.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #2b2b2b; margin: 0 0 16px 0;\"\u003eManufactured from \u003cstrong\u003efibre\u003c\/strong\u003e, this washer is the correct replacement for the standard 2-1\/4\" BSP boss used across the majority of the Tesla domestic immersion heater range, including the Copper, Incoloy and Titanium element variants.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; margin: 0 -4px 20px -4px;\"\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #F7FAFA; border: 1px solid #D9EDEA; border-radius: 8px; padding: 14px 10px; text-align: center; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 19px; font-weight: bold; color: #008377cf;\"\u003eFibre\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #555; margin-top: 4px; text-transform: uppercase; letter-spacing: .04em;\"\u003eMaterial\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #F7FAFA; border: 1px solid #D9EDEA; border-radius: 8px; padding: 14px 10px; text-align: center; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 19px; font-weight: bold; color: #008377cf;\"\u003e2-1\/4\"\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #555; margin-top: 4px; text-transform: uppercase; letter-spacing: .04em;\"\u003eBoss Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #F7FAFA; border: 1px solid #D9EDEA; border-radius: 8px; padding: 14px 10px; text-align: center; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 19px; font-weight: bold; color: #008377cf;\"\u003eGreen\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #555; margin-top: 4px; text-transform: uppercase; letter-spacing: .04em;\"\u003eColour\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 130px; background: #F7FAFA; border: 1px solid #D9EDEA; border-radius: 8px; padding: 14px 10px; text-align: center; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 19px; font-weight: bold; color: #008377cf;\"\u003eBSP\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #555; margin-top: 4px; text-transform: uppercase; letter-spacing: .04em;\"\u003eThread Standard\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #FFF6E5; border-left: 4px solid #E0942A; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 0 0 18px 0; font-size: 15px; color: #2b2b2b;\"\u003e\n\u003cstrong style=\"color: #e0942a;\"\u003ePlease Note:\u003c\/strong\u003e Always fit a \u003cstrong\u003enew sealing washer\u003c\/strong\u003e when removing and refitting an immersion heater. Reusing an old, compressed washer is a common cause of leaks at the cylinder boss. Older washers may also contain traces of asbestos — handle and dispose of removed washers with appropriate care.\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; margin: 0 -4px 20px -4px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #fff; border: 1px solid #D9EDEA; border-radius: 8px; padding: 16px 18px; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #00625d; margin-bottom: 6px;\"\u003eFibre Construction for a Reliable Seal\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.55;\"\u003eManufactured from \u003cstrong\u003efibre\u003c\/strong\u003e, this washer compresses evenly under the heater boss to form a \u003cstrong\u003ewatertight seal\u003c\/strong\u003e against the cylinder thread.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #fff; border: 1px solid #D9EDEA; border-radius: 8px; padding: 16px 18px; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #00625d; margin-bottom: 6px;\"\u003eMatches the Standard 2-1\/4\" Boss\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.55;\"\u003eSized specifically for the \u003cstrong\u003e2-1\/4\" BSP boss\u003c\/strong\u003e used across the majority of the Tesla domestic immersion heater range.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #fff; border: 1px solid #D9EDEA; border-radius: 8px; padding: 16px 18px; margin: 4px;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #00625d; margin-bottom: 6px;\"\u003eSimple Like-for-Like Replacement\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.55;\"\u003eA straightforward, low-cost part to keep on hand whenever an immersion heater is being \u003cstrong\u003eremoved, inspected or replaced\u003c\/strong\u003e, avoiding an unnecessary return trip for a single seal.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial,Helvetica,sans-serif;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: .05em; text-transform: uppercase;\"\u003eGeneral Specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #F7FAFA; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; width: 44%; border-bottom: 1px solid #D9EDEA;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"background: #F7FAFA; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #D9EDEA;\"\u003eFibre sealing washer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #ffffff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; width: 44%; border-bottom: 1px solid #D9EDEA;\"\u003eBoss Size\u003c\/td\u003e\n\u003ctd style=\"background: #ffffff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #D9EDEA;\"\u003e2-1\/4\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #F7FAFA; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; width: 44%; border-bottom: 1px solid #D9EDEA;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"background: #F7FAFA; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #D9EDEA;\"\u003eFibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #ffffff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; width: 44%; border-bottom: 1px solid #D9EDEA;\"\u003eColour\u003c\/td\u003e\n\u003ctd style=\"background: #ffffff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #D9EDEA;\"\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #F7FAFA; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; width: 44%; border-bottom: 1px solid #D9EDEA;\"\u003eCompatible Use\u003c\/td\u003e\n\u003ctd style=\"background: #F7FAFA; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #D9EDEA;\"\u003eStandard 2-1\/4\" BSP immersion heater boss on domestic hot water cylinders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #FDECEC; border-left: 4px solid #D32F2F; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 0 0 18px 0; font-size: 15px; color: #2b2b2b;\"\u003e\n\u003cstrong style=\"color: #d32f2f;\"\u003eImportant Safety Information:\u003c\/strong\u003e This washer forms part of the sealing arrangement for a mains-voltage electrical heating appliance. Fitting or replacing an immersion heater and its sealing washer should be carried out by, or under the supervision of, a \u003cstrong\u003esuitably qualified person\u003c\/strong\u003e, with the electrical supply isolated before any work begins.\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #D9EDEA; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #00625d; cursor: pointer; list-style: none; background: #E6F4F3;\"\u003eDo I need to replace the washer every time I remove the immersion heater?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px 18px; font-size: 14.5px; color: #333; line-height: 1.6; border-top: 1px solid #D9EDEA; background: #fff;\"\u003eYes. A fibre washer \u003cstrong\u003ecompresses permanently\u003c\/strong\u003e once fitted and will not reseal reliably if reused. Always fit a new washer whenever the heater is removed and refitted.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #D9EDEA; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #00625d; cursor: pointer; list-style: none; background: #E6F4F3;\"\u003eWhat boss size does this washer fit?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px 18px; font-size: 14.5px; color: #333; line-height: 1.6; border-top: 1px solid #D9EDEA; background: #fff;\"\u003eThis washer is sized for the standard \u003cstrong\u003e2-1\/4\" BSP boss\u003c\/strong\u003e used on the majority of domestic immersion heaters, including the Tesla Copper, Incoloy and Titanium ranges.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #D9EDEA; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #00625d; cursor: pointer; list-style: none; background: #E6F4F3;\"\u003eIs this washer suitable for the 1-3\/4\" or 1-1\/2\" boss heaters?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px 18px; font-size: 14.5px; color: #333; line-height: 1.6; border-top: 1px solid #D9EDEA; background: #fff;\"\u003eNo. This washer is specifically sized for the \u003cstrong\u003e2-1\/4\" BSP\u003c\/strong\u003e boss. Heaters using the smaller 1-3\/4\" or 1-1\/2\" boss require a differently sized seal.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #D9EDEA; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #00625d; cursor: pointer; list-style: none; background: #E6F4F3;\"\u003eWhat should I do with the old washer when I remove it?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px 18px; font-size: 14.5px; color: #333; line-height: 1.6; border-top: 1px solid #D9EDEA; background: #fff;\"\u003eHandle old washers with care, as \u003cstrong\u003esome older washers may contain traces of asbestos\u003c\/strong\u003e. Follow current regulations for safe handling and disposal.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tesla UK","offers":[{"title":"Default Title","offer_id":65857440547165,"sku":"IHW","price":2.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TeslaImmersionHeaterFibreSealingWasherReplacementSeal.jpg?v=1788864046","url":"https:\/\/qualityheating.co.uk\/products\/tesla-immersion-heater-fibre-sealing-washer-2-1-4-inch-bsp-replacement-seal","provider":"AIZO Quality Heating","version":"1.0","type":"link"}