{"product_id":"mcalpine-scale-defender-refill-pack","title":"McAlpine Scale Defender Refill Pack | 2 x Replacement Cartridges | 40,000L Each","description":"\u003cp\u003eKeep your McAlpine Scale Defender performing at full effectiveness with this genuine \u003cstrong\u003eRefill Pack\u003c\/strong\u003e. Each pack contains \u003cstrong\u003e2 replacement polyphosphate cartridges\u003c\/strong\u003e — simply swap out the spent cartridge when needed, no tools, no plumber, no fuss. Each cartridge treats up to \u003cstrong\u003e40,000 litres\u003c\/strong\u003e, so this pack gives you two full service cycles of whole-home limescale protection.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2 × McAlpine Scale Defender replacement cartridges\u003c\/li\u003e\n\u003cli\u003eEach cartridge treats up to 40,000L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine McAlpine replacement cartridges\u003c\/strong\u003e — designed specifically for the McAlpine Scale Defender unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40,000L capacity per cartridge\u003c\/strong\u003e — long-lasting protection between replacements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFood-grade polyphosphate\u003c\/strong\u003e — WHO and FAO approved, safe for drinking water, BS EN 1212 certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy DIY replacement\u003c\/strong\u003e — no plumber needed, no tools required, takes just minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaves money\u003c\/strong\u003e — a 1mm limescale build-up can add £150–£200 to annual energy bills (Carbon Trust)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-pack value\u003c\/strong\u003e — two full service cycles in one purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e McAlpine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e SCA-RE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack contents:\u003c\/strong\u003e 2 x replacement cartridges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge capacity:\u003c\/strong\u003e 40,000L per cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive ingredient:\u003c\/strong\u003e Food-grade polyphosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e ¾” Male BSP with 15mm \u0026amp; 22mm fittings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking pressure:\u003c\/strong\u003e 0.5 – 10 Bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest pressure:\u003c\/strong\u003e 25 Bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e 1°C – 40°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax water flow rate:\u003c\/strong\u003e 3,000 L\/hr\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure loss (max):\u003c\/strong\u003e ±0.3 Bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e BS EN 1212 | EC drinking water regulations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.41 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich unit does this fit?\u003c\/strong\u003e\u003cbr\u003eThese cartridges are designed for use with the McAlpine Scale Defender unit (SCA-STA). They are not compatible with other brands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow often do I need to replace the cartridge?\u003c\/strong\u003e\u003cbr\u003eEach cartridge lasts up to 40,000 litres. For an average UK household, this is typically once every 6–12 months depending on water usage and hardness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo I need a plumber to replace it?\u003c\/strong\u003e\u003cbr\u003eNo — cartridge replacement is a simple DIY job. No tools or specialist knowledge are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the polyphosphate safe?\u003c\/strong\u003e\u003cbr\u003eYes — it is food-grade, WHO and FAO approved, and complies fully with BS EN 1212 and EC drinking water regulations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I order if the item shows as out of stock?\u003c\/strong\u003e\u003cbr\u003eYes — this item is ordered in specially for you and will typically be dispatched within 5–7 working days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen will my order be dispatched?\u003c\/strong\u003e\u003cbr\u003eAs this item is ordered in to fulfil your order, please allow 5–7 working days for dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDelivery Information\u003c\/h2\u003e\n\u003cp\u003eThis is a small, postable item covered by a one-off small item delivery charge. You can combine it with other small items in a single order and pay just one delivery charge. \u003ca href=\"\/collections\/small-items\" target=\"_blank\"\u003eBrowse all items covered by the small delivery charge\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your McAlpine Scale Defender System\u003c\/h2\u003e\n\u003cp\u003eDon't have a Scale Defender unit yet? Start here:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mcalpine-scale-defender-starter-kit\" target=\"_blank\"\u003e\u003cstrong\u003eMcAlpine Scale Defender Starter Kit (SCA-STA)\u003c\/strong\u003e — includes unit, cartridge, 15mm \u0026amp; 22mm connectors\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"McAlpine","offers":[{"title":"Default Title","offer_id":53020200436049,"sku":"SCA-RE","price":95.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/3687\/9441\/files\/Scale-Defender-Refill-png_1cb343a9-0260-4d16-8bf7-43482ce1c5e3.png?v=1770760276","url":"https:\/\/www.bubblegumbathrooms.com\/products\/mcalpine-scale-defender-refill-pack","provider":"Bubblegum Bathrooms","version":"1.0","type":"link"}