{"product_id":"aquaphor-k5-mechanical-pre-filtration-replacement-cartridge","title":"AQUAPHOR K5 Mechanical Pre-filtration Replacement Cartridge","description":"\u003cstyle\u003e\n  .rf-prod-wrap {\n    max-width: 1180px;\n    margin: 0 auto;\n    padding: 35px 20px;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #2d3748;\n    line-height: 1.65;\n  }\n\n  .rf-prod-wrap * {\n    box-sizing: border-box;\n  }\n\n  \/* Typography Structure *\/\n  .rf-prod-wrap h1,\n  .rf-prod-wrap h2,\n  .rf-prod-wrap h3,\n  .rf-prod-wrap h4 {\n    color: #000 !important;\n    font-weight: 800 !important;\n    line-height: 1.25;\n    margin: 0 0 16px;\n    letter-spacing: -0.02em;\n  }\n\n  .rf-prod-wrap p {\n    margin: 0 0 18px;\n    color: #4a5568;\n  }\n\n  \/* Section Spacing *\/\n  .rf-p-section {\n    margin: 50px 0;\n  }\n\n  .rf-p-section h2 {\n    font-size: 28px;\n    margin-bottom: 18px;\n  }\n\n  \/* Inline Brand Hub Links 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rgba(0,0,0,0.01);\n  }\n\n  .rf-p-faq-item[open] {\n    border-color: #CAE6EC;\n  }\n\n  .rf-p-faq-item summary {\n    cursor: pointer;\n    color: #000;\n    font-weight: 700;\n    padding: 16px 45px 16px 20px;\n    list-style: none;\n    position: relative;\n    font-size: 16px;\n  }\n\n  .rf-p-faq-item summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .rf-p-faq-item summary::after {\n    content: \"+\";\n    position: absolute;\n    right: 20px;\n    top: 50%;\n    transform: translateY(-50%);\n    font-weight: 400;\n    font-size: 20px;\n    color: #a0aec0;\n  }\n\n  .rf-p-faq-item[open] summary::after {\n    content: \"−\";\n    color: #005a70;\n  }\n\n  .rf-p-faq-item p {\n    margin: 0;\n    padding: 0 20px 18px 20px;\n    font-size: 14.5px;\n    color: #4a5568;\n    border-top: 1px solid #fafafa;\n  }\n\n  \/* Technical Specification Tables *\/\n  .rf-p-table-wrap {\n    overflow-x: auto;\n    border: 1px solid #e2e8f0;\n    border-radius: 14px;\n    margin: 25px 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{\n      grid-template-columns: 1fr;\n      gap: 25px;\n      padding: 30px 20px;\n    }\n  }\n\n  @media (max-width: 480px) {\n    .rf-p-features-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .rf-p-table td:first-child {\n      width: 40%;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"rf-prod-wrap\"\u003e\n\u003csection class=\"rf-p-header\"\u003e\n\u003ch2 style=\"font-size: 34px; margin-bottom: 16px; color: #005a70 !important;\"\u003e\u003cstrong\u003eAquaphor K5 Replacement Filter Cartridge\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eMaintain the crucial first line of defense in your Aquaphor under-sink system with the genuine Aquaphor K5 Replacement Filter Cartridge. This high-capacity mechanical pre-filtration stage is precisely engineered to trap incoming physical sediment, shielding sensitive downline components from abrasion and premature blockage. Acting as the initial entry pathway, the K5 guarantees steady water production velocities and actively extends the operational lifespan of your reverse osmosis membrane.\u003c\/p\u003e\n\u003cdiv class=\"rf-brand-hub-link\"\u003e🔍 \u003cstrong\u003eExplore the complete brand catalog:\u003c\/strong\u003e \u003ca title=\"View full range of Aquaphor Products\" href=\"https:\/\/regalflow.co.uk\/collections\/aquaphor\"\u003eView all original replacements and advanced units in our Aquaphor collection\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"rf-p-features-grid\"\u003e\n\u003cdiv class=\"rf-p-feat-card\"\u003e\n\u003ch4\u003e5 Micron Matrix\u003c\/h4\u003e\n\u003cp\u003eIntercepts floating sand, silt, oxidation rust, and coarse macro-particles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-p-feat-card\"\u003e\n\u003ch4\u003eShields Membranes\u003c\/h4\u003e\n\u003cp\u003ePrevents surface fouling on expensive reverse osmosis elements downline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-p-feat-card\"\u003e\n\u003ch4\u003eBalances Wear\u003c\/h4\u003e\n\u003cp\u003eLightens the physical particulate load routed to secondary carbon block stages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-p-feat-card\"\u003e\n\u003ch4\u003e100% Polypropylene\u003c\/h4\u003e\n\u003cp\u003eConstructed using premium spun-bonded polymers for structural integrity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"rf-p-section\"\u003e\n\u003ch2\u003eWhy Essential Pre-Filtration Dictates System Success\u003c\/h2\u003e\n\u003cp\u003eWithout a robust physical pre-filter array stationed at your incoming water terminal, coarse particulate fragments will bypass safety paths and settle into downline carbon pores. This premature fouling heavily degrades treatment efficiency and risks permanently blinding the ultra-microscopic surface paths of your main reverse osmosis membrane shield.\u003c\/p\u003e\n\u003cp\u003eThe Aquaphor K5 uses premium multi-tiered density mapping to anchor and distribute captured particles evenly through its outer core. This clever depth design prevents sudden water pressure drops, ensuring that downline carbon filters can focus fully on chemical absorption instead of getting choked by simple pipe dirt.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-p-section\"\u003e\n\u003ch2\u003eWhat the K5 Cartridge Extracts\u003c\/h2\u003e\n\u003cp\u003eThe K5 module is purpose-built to extract visible and suspended solid contaminants that regularly break free from aging municipal distribution networks. This includes heavy pipe rust flakes, silica sand particles, loose clay silt, and general abrasive sediments down to 5 microns. Keeping these solids contained ensures clean, uninterrupted water flow to your point-of-use tap.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-p-section\"\u003e\n\u003cdiv class=\"rf-p-cartridge-block\"\u003e\n\u003ch3\u003eCompatible Hardware \u0026amp; Complete Upgrade Routes\u003c\/h3\u003e\n\u003cp\u003eMaintain correct service cycles or pair this element with corresponding components:\u003c\/p\u003e\n\u003cdiv class=\"rf-filter-links\"\u003e\n\u003ca href=\"https:\/\/regalflow.co.uk\/products\/aquaphor-ro-102s-reverse-osmosis-system\" class=\"rf-filter-btn\"\u003eAquaphor RO-102S Main Unit\u003c\/a\u003e \u003ca href=\"https:\/\/regalflow.co.uk\/products\/aquaphor-set-replacement-cartridges-k5-k2-k7\" class=\"rf-filter-btn\"\u003eK5, K2 \u0026amp; K7M 3-Cartridge Set\u003c\/a\u003e \u003ca href=\"https:\/\/regalflow.co.uk\/products\/aquaphor-replacement-set-ro-systems-k1-k2-k7bm-ro100s\" class=\"rf-filter-btn\"\u003eFull System Kit with Membrane\u003c\/a\u003e \u003ca href=\"https:\/\/regalflow.co.uk\/products\/aquaphor-ro-100s-reverse-osmosis-membrane-filter-only\" class=\"rf-filter-btn\"\u003eStandalone RO-100S Membrane\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-p-section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"rf-p-faq\"\u003e\n\u003cdetails class=\"rf-p-faq-item\"\u003e\n\u003csummary\u003eWhat is the main function of the Aquaphor K5 cartridge?\u003c\/summary\u003e\n\u003cp\u003eThe K5 cartridge acts as a dedicated physical sediment trap. It catches abrasive particulate debris—including sand, rust particles, and silt—before they can flow deeper into your system's sensitive carbon blocks or reverse osmosis membranes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rf-p-faq-item\"\u003e\n\u003csummary\u003eWhy shouldn't I bypass mechanical pre-filtration steps?\u003c\/summary\u003e\n\u003cp\u003eSkipping this stage exposes downstream filters to raw plumbing debris. Without the K5 shield, these coarse solids quickly clog fine carbon pores and foul the reverse osmosis membrane, leading to low water pressure and higher replacement costs.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"rf-p-faq-item\"\u003e\n\u003csummary\u003eHow regularly should the K5 element be changed?\u003c\/summary\u003e\n\u003cp\u003eThe K5 filter should typically be replaced every 6 months. However, this timeline depends heavily on your local water quality; areas with older infrastructure or high plumbing sediment may require more frequent swaps to maintain steady water pressure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-p-section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"rf-p-table-wrap\"\u003e\n\u003ctable class=\"rf-p-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Category\u003c\/th\u003e\n\u003cth\u003eDetails \u0026amp; Configuration Metrics\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name Designation\u003c\/td\u003e\n\u003ctd\u003eAquaphor K5 Twist-Lock Replacement Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuick Find Reference\u003c\/td\u003e\n\u003ctd\u003e24451\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Code\u003c\/td\u003e\n\u003ctd\u003e515919\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration Core Threshold\u003c\/td\u003e\n\u003ctd\u003e5 Micron Nominal Particulate Shielding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia Composition Material\u003c\/td\u003e\n\u003ctd\u003e100% Pure Spun-Bonded Polypropylene Matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Operating Class\u003c\/td\u003e\n\u003ctd\u003eMechanical Sediment Pre-Filtration Stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Fitment Type\u003c\/td\u003e\n\u003ctd\u003eHygienic Quick-Change Click-and-Twist Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand Origin Authority\u003c\/td\u003e\n\u003ctd\u003eAquaphor Water Filtration Technologies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-p-footer-support\"\u003e\n\u003cdiv class=\"rf-p-foot-meta\"\u003e\n\u003ch2\u003eAvailable Now with Fast UK Delivery\u003c\/h2\u003e\n\u003cp\u003eOrder your genuine Aquaphor K5 replacement filter cartridge today to keep your under-sink system fully protected. If you need assistance matching parts or verifying connection steps for your kitchen configuration, get in touch with our technical team.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-p-foot-contacts\"\u003e\n\u003cdiv\u003e\n\u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"#005a70\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"rf-contact-icon\"\u003e\u003cpath d=\"M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"22,6 12,13 2,6\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e \u003cstrong\u003eEmail Support:\u003c\/strong\u003e \u003ca href=\"mailto:info@regalflow.co.uk\"\u003einfo@regalflow.co.uk\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"#005a70\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"rf-contact-icon\"\u003e\u003cpath d=\"M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \u003cstrong\u003eTelephone Direct:\u003c\/strong\u003e \u003ca href=\"tel:01216301130\"\u003e0121 630 1130\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2\" stroke=\"#25D366\" fill=\"none\" viewbox=\"0 0 24 24\" class=\"rf-contact-icon\"\u003e\u003cpath fill-opacity=\"0.15\" fill=\"#25D366\" d=\"M21 11.5a8.38 8.38 0 0 1-.9 3.8 8.5 8.5 0 0 1-7.6 4.7 8.38 8.38 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 4.7-7.6 8.38 8.38 0 0 1 3.8-.9h.5a8.48 8.48 0 0 1 8 8v.5z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \u003cstrong\u003eWhatsApp Chat:\u003c\/strong\u003e \u003ca rel=\"noopener\" href=\"https:\/\/wa.me\/441216301130\" target=\"_blank\"\u003eClick here to message our technical team instantly\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aquaphor","offers":[{"title":"Default Title","offer_id":57735265091971,"sku":null,"price":16.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Aquaphor_K5_Pre_filtration_filter.png?v=1775494644","url":"https:\/\/regalflow.co.uk\/products\/aquaphor-k5-mechanical-pre-filtration-replacement-cartridge","provider":"Regal Flow","version":"1.0","type":"link"}