{"product_id":"20-big-blue-filter-housing-spanner","title":"20″ Big Blue Filter Housing Spanner","description":"\u003ch1 data-start=\"95\" data-end=\"364\"\u003e20″ Big Blue \u003ca href=\"https:\/\/puritech.co.za\/product-category\/filter-housings\/\"\u003eFilter Housing\u003c\/a\u003e Spanner (4.5″ Diameter Housing Wrench)\u003c\/h1\u003e \u003ch3 data-start=\"560\" data-end=\"574\"\u003eOverview\u003c\/h3\u003e \u003cp data-start=\"600\" data-end=\"850\"\u003eThe \u003cstrong data-start=\"604\" data-end=\"635\"\u003e20” Big Blue Filter Housing Spanner\u003c\/strong\u003e is a must-have tool for anyone using large water filter housings. This \u003cstrong data-start=\"707\" data-end=\"738\"\u003e20” Big Blue Filter Housing Spanner\u003c\/strong\u003e allows you to tighten and loosen housings quickly without damaging them, making maintenance faster and safer.\u003c\/p\u003e \u003cp data-start=\"852\" data-end=\"1028\"\u003eMade from \u003cstrong data-start=\"862\" data-end=\"893\"\u003edurable, heavy-duty plastic\u003c\/strong\u003e, this spanner ensures a secure grip and long-lasting performance. It helps prevent leaks and makes cartridge replacement effortless.\u003c\/p\u003e \u003cp data-start=\"1030\" data-end=\"1291\"\u003eWith its ergonomic design, the handle provides better leverage and comfort during use. Whether you’re maintaining a \u003cstrong data-start=\"1146\" data-end=\"1178\"\u003ehome water filtration system\u003c\/strong\u003e or managing an \u003cstrong data-start=\"1194\" data-end=\"1214\"\u003eindustrial setup\u003c\/strong\u003e, the \u003cstrong data-start=\"1220\" data-end=\"1251\"\u003e20” Big Blue Filter Housing Spanner\u003c\/strong\u003e delivers convenience and reliability.\u003c\/p\u003e \u003cp data-start=\"1293\" data-end=\"1521\"\u003eAlways make sure to match the correct spanner size with your filter housing. Using the proper \u003cstrong data-start=\"1387\" data-end=\"1418\"\u003e20” Big Blue Filter Housing Spanner\u003c\/strong\u003e not only extends the life of your equipment but also keeps your filtration system working efficiently.\u003c\/p\u003e \u003ch3 data-start=\"1528\" data-end=\"1583\"\u003e\u003cstrong data-start=\"1532\" data-end=\"1583\"\u003eKey Features of the 20” Big Blue Filter Housing Spanner\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"1586\" data-end=\"1636\"\u003eFits \u003cstrong data-start=\"1591\" data-end=\"1623\"\u003e20” Big Blue filter housings\u003c\/strong\u003e perfectly.\u003c\/li\u003e \u003cli data-start=\"1639\" data-end=\"1697\"\u003eMade from \u003cstrong data-start=\"1649\" data-end=\"1681\"\u003estrong, high-quality plastic\u003c\/strong\u003e for long use.\u003c\/li\u003e \u003cli data-start=\"1700\" data-end=\"1745\"\u003ePrevents housing damage during maintenance.\u003c\/li\u003e \u003cli data-start=\"1748\" data-end=\"1802\"\u003eDesigned for \u003cstrong data-start=\"1761\" data-end=\"1799\"\u003eeasy grip and quick filter changes\u003c\/strong\u003e.\u003c\/li\u003e \u003cli data-start=\"1805\" data-end=\"1858\"\u003eIdeal for both \u003cstrong data-start=\"1820\" data-end=\"1855\"\u003edomestic and commercial systems\u003c\/strong\u003e.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"1865\" data-end=\"1916\"\u003e\u003cstrong data-start=\"1869\" data-end=\"1916\"\u003eBenefits of the 20” Big Blue Filter Housing Spanner\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"1919\" data-end=\"1997\"\u003e\n\u003cstrong data-start=\"1919\" data-end=\"1942\"\u003eFaster maintenance:\u003c\/strong\u003e Quickly open and close housings with minimal effort.\u003c\/li\u003e \u003cli data-start=\"2000\" data-end=\"2073\"\u003e\n\u003cstrong data-start=\"2000\" data-end=\"2023\"\u003eProtects equipment:\u003c\/strong\u003e Reduces risk of cracks or leaks during service.\u003c\/li\u003e \u003cli data-start=\"2076\" data-end=\"2152\"\u003e\n\u003cstrong data-start=\"2076\" data-end=\"2095\"\u003eDurable design:\u003c\/strong\u003e Strong plastic construction for long-term reliability.\u003c\/li\u003e \u003cli data-start=\"2155\" data-end=\"2219\"\u003e\n\u003cstrong data-start=\"2155\" data-end=\"2173\"\u003eVersatile use:\u003c\/strong\u003e Works in home and industrial water systems.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"1457\" data-end=\"1477\"\u003eSpecifications \u003cstrong data-start=\"1869\" data-end=\"1916\"\u003eof the 20” Big Blue Filter Housing Spanner\u003c\/strong\u003e\n\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"1480\" data-end=\"1550\"\u003eFits: 20″ length, 4.5″ cartridge diameter, “Big Blue” style housings\u003c\/li\u003e \u003cli data-start=\"1553\" data-end=\"1649\"\u003eUse: Opening\/closing filter housing bowls during cartridge replacement or system maintenance\u003c\/li\u003e \u003cli data-start=\"1652\" data-end=\"1720\"\u003eMaterial: Varies (plastic or zinc-plated steel, depending on model)\u003c\/li\u003e \u003cli data-start=\"1723\" data-end=\"1807\"\u003eIdeal for: Whole-house filter systems, water treatment setups, service technicians\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"2267\" data-end=\"2282\"\u003eUse Cases \u003cstrong data-start=\"1869\" data-end=\"1916\"\u003eof the 20” Big Blue Filter Housing Spanner\u003c\/strong\u003e\n\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"2285\" data-end=\"2363\"\u003eDIY home filtration system owners servicing their whole-house filter system.\u003c\/li\u003e \u003cli data-start=\"2366\" data-end=\"2462\"\u003eWater treatment companies, plumbers or service techs who replace filter cartridges frequently.\u003c\/li\u003e \u003cli data-start=\"2465\" data-end=\"2582\"\u003eBottling plants, commercial filtration systems or any setup using 20″ Big Blue housings that see regular maintenance.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"2584\" data-end=\"2621\"\u003eInstallation \u0026amp; Maintenance Tips \u003cstrong data-start=\"1869\" data-end=\"1916\"\u003eof the 20” Big Blue Filter Housing Spanner\u003c\/strong\u003e\n\u003c\/h3\u003e \u003cul\u003e \u003cli data-start=\"2624\" data-end=\"2726\"\u003eBefore loosening the housing, turn off water supply and relieve pressure (open a downstream faucet).\u003c\/li\u003e \u003cli data-start=\"2729\" data-end=\"2813\"\u003eUse the spanner to apply a steady, even force — avoid jerking or twisting violently.\u003c\/li\u003e \u003cli data-start=\"2816\" data-end=\"2999\"\u003eAfter replacing the cartridge or performing the service, ensure the O-ring is clean, lightly greased (food grade silicone grease) and seated correctly before re-tightening the bowl.\u003c\/li\u003e \u003cli data-start=\"3002\" data-end=\"3142\"\u003ePeriodically check the tool itself — if using a plastic wrench and it shows wear, upgrade to a metal version to avoid breaking during use.\u003c\/li\u003e \u003cli data-start=\"3145\" data-end=\"3245\"\u003eStore in a dry area; if using the metal version, keep it free from rust and debris to maintain grip.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3 data-start=\"3247\" data-end=\"3281\"\u003eWhy Choose Puritech\u003c\/h3\u003e \u003cp data-start=\"3282\" data-end=\"3568\"\u003eAt Puritech, we specialise in high-quality water filtration accessories. This spanner is part of our commitment to helping you maintain your system efficiently and reliably. With local support, fast delivery in South Africa, and trusted tools, we ensure you’re equipped for the job.\u003c\/p\u003e \u003ch3 data-start=\"3575\" data-end=\"3583\"\u003eFAQ\u003c\/h3\u003e \u003cp data-start=\"3584\" data-end=\"4654\"\u003e\u003cstrong data-start=\"3584\" data-end=\"3631\"\u003eQ: Will this spanner fit my filter housing?\u003c\/strong\u003e\u003cbr data-start=\"3631\" data-end=\"3634\"\u003eA: It fits “Big Blue” style housings that hold 4.5″ diameter cartridges and are 20″ in length. If your housing is 10″ length or uses a different diameter cartridge, you might need a different size. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" href=\"https:\/\/www.allfilters.com\/waterfilterparts\/housingwrenches\/bb-housing-wrench?srsltid=AfmBOooEA2A8bg4UP7F-Ei2yxvxGgcCLb70hXRPSI7nbkJxyJVWfVfrT\u0026amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003eAll Filters\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-start=\"3869\" data-end=\"3872\"\u003e\u003cstrong data-start=\"3872\" data-end=\"3915\"\u003eQ: Is this suitable for commercial use?\u003c\/strong\u003e\u003cbr data-start=\"3915\" data-end=\"3918\"\u003eA: Yes — the tool is designed for whole-house and commercial filter housings of the 20″ Big Blue format, so it’s suitable for higher-volume systems too.\u003cbr data-start=\"4070\" data-end=\"4073\"\u003e\u003cstrong data-start=\"4073\" data-end=\"4133\"\u003eQ: How tight should the housing bowl be after servicing?\u003c\/strong\u003e\u003cbr data-start=\"4133\" data-end=\"4136\"\u003eA: Tighten until the O-ring sits flush and you feel firm resistance; do not overtighten with sheer force — the spanner should allow you to get it sufficiently sealed without risking stress on the threads.\u003cbr data-start=\"4340\" data-end=\"4343\"\u003e\u003cstrong data-start=\"4343\" data-end=\"4394\"\u003eQ: What if the housing is stuck and won’t turn?\u003c\/strong\u003e\u003cbr data-start=\"4394\" data-end=\"4397\"\u003eA: Make sure you’ve depressed the pressure relief on the housing, turned off water supply, and used the correct size spanner. If it’s still stuck, using a metal wrench version helps because it offers greater leverage.\u003c\/p\u003e","brand":"Monster Mechanical","offers":[{"title":"Default","offer_id":45115701067845,"sku":"MM-20BIGBLUEFILTERHOUSINGSP-62662","price":106.26,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/8627\/7445\/files\/20-inch-Big-Blue-Spanner.jpg?v=1780903158","url":"https:\/\/www.monstermechanical.co.za\/products\/20-big-blue-filter-housing-spanner","provider":"Monster Mechanical","version":"1.0","type":"link"}