{"product_id":"coldstream-cf163w-ceramic-gravity-water-filter-4-pack-replacement-for-wrekin-water-wssd-fl-doulton-british-berkefeld-big-berkey-propur-1","title":"Coldstream CF163W Ceramic Gravity Water Filter | Replacement for Wrekin Water WSSD-FL, Doulton, British Berkefeld, Big Berkey \u0026 Propur","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe Coldstream CF163W is a ceramic gravity water filter cartridge that fits directly into the Wrekin Water WSSD-FL, Doulton (British Berkefeld), Big Berkey, King Berkey, and Propur Big\/King gravity filter housings, removing bacteria, cysts, heavy metals, and up to 97% of fluoride without power or plumbing. \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe CF163W uses the same 2.9\" x 8\" ceramic candle format as the filters supplied with the Wrekin Water WSSD-FL, making it a direct drop-in alternative — so you can run either the standard Wrekin ceraULTRA FTO filter or the Coldstream CF163W in the same housing, whichever suits your budget or filtration preference.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eUnlike systems that need a separate fluoride cartridge (such as the PF-4 or PF-2 filters used with Doulton Super Sterasyl or Berkey Black Elements), the CF163W handles fluoride, hormone, and pharmaceutical reduction in a single filter — freeing up space in your lower chamber for more stored water and cutting the cost of running a two-filter setup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eContaminant removal:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBacteria (E.coli, Cholera, Shigella, Typhoid, Klebsiella Terrigena): 99.9999%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCysts (Cryptosporidium, Giardia): 99.9999%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLead, Cadmium, Selenium, Zinc: 100%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHeavy metal contaminants (to NSF 53c): 97%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eVolatile Organic Contaminants: 94–99%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePesticides \u0026amp; herbicides: 99.9%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFree chlorine (taste \u0026amp; odour): 99.9%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eChloramine: 99.9%\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFluoride: 97.0%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDiameter: 2.9\" | Length: 8.0\"\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFitting: ¼\" BSP, 26mm (LM) fitting length\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFlow rate: 1.0 L\/hr per filter\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOperating temperature: 5°C–30°C\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRecommended service life: 6 months per filter\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCertification: NSF certified, WRAS approved, made in the UK\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eCompatible with:\u003c\/strong\u003e\u003cbr\u003eWrekin Water WSSD-FL gravity system, Doulton (British Berkefeld) gravity housings, Big Berkey, King Berkey, Propur Big, Propur King, and other stainless steel gravity filter systems using 2.9\" x 8\" ceramic candles.\u003c\/p\u003e","brand":"Coldstream","offers":[{"title":"Singles","offer_id":55032558715209,"sku":"CF163W","price":34.0,"currency_code":"GBP","in_stock":true},{"title":"Twin","offer_id":55032558747977,"sku":"CF163W-2pk","price":62.0,"currency_code":"GBP","in_stock":true},{"title":"Four Pack","offer_id":55032558780745,"sku":"CF163W-4pk","price":122.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/0235\/9625\/files\/ColdstreamCF163W.jpg?v=1786368871","url":"https:\/\/wrekinwatertreatment.co.uk\/products\/coldstream-cf163w-ceramic-gravity-water-filter-4-pack-replacement-for-wrekin-water-wssd-fl-doulton-british-berkefeld-big-berkey-propur-1","provider":"WrekinWater","version":"1.0","type":"link"}