{"product_id":"osmio-promax-iii-xl-ultimate-whole-house-water-filter","title":"Osmio PROMAX-III-XL Ultimate Whole House Water Filter System","description":"\u003cdiv class=\"rf-pm3xl\"\u003e\n  \u003csection class=\"rf-pm3xl__opening\"\u003e\n    \u003cp class=\"rf-pm3xl__eyebrow\"\u003e\n      Osmio PROMAX-III-XL Ultimate · High-capacity three-stage filtration\n    \u003c\/p\u003e\n    \u003ch2\u003eAdvanced whole-house filtration in full-size 20-inch housings\u003c\/h2\u003e\n    \u003cp\u003e\n      The Osmio PROMAX-III-XL combines specialist PFAS and fluoride media,\n      catalytic chloramine carbon and NanoCeram® filtration. Its three 4.5 ×\n      20-inch stages provide greater media capacity than the standard PROMAX-III\n      while treating the incoming mains supply before it travels around the\n      home.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"rf-pm3xl__buttons\"\u003e\n      \u003ca class=\"rf-pm3xl__button rf-pm3xl__button--primary\" href=\"#rf-pm3xl-stages\"\u003e\n        Explore the three stages\n      \u003c\/a\u003e\n\n      \u003ca class=\"rf-pm3xl__button rf-pm3xl__button--secondary\" href=\"#rf-pm3xl-installation\"\u003e\n        Installation requirements\n      \u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__alternating rf-pm3xl__alternating--first\"\u003e\n    \u003cdiv class=\"rf-pm3xl__media\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_PRO_MAX_III_XL_installed.png?v=1790439883\" alt=\"Installed Osmio PROMAX-III-XL Ultimate whole-house water filter system\" loading=\"eager\"\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__copy\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003ePoint-of-entry treatment\u003c\/p\u003e\n      \u003ch2\u003eTreat the supply before it reaches taps, showers and appliances\u003c\/h2\u003e\n      \u003cp\u003e\n        Installed on the incoming cold main, the PROMAX-III-XL combines\n        chemical, disinfectant and fine-particle reduction in one high-capacity\n        system. It is intended for larger homes and installations where longer\n        20-inch cartridges are preferable to compact 10-inch housings.\n      \u003c\/p\u003e\n\n      \u003cul class=\"rf-pm3xl__ticks\"\u003e\n        \u003cli\u003eThree specialist 4.5 × 20-inch filter cartridges\u003c\/li\u003e\n        \u003cli\u003ePFAS, fluoride, chlorine and chloramine reduction\u003c\/li\u003e\n        \u003cli\u003e0.2-micron final NanoCeram® filtration\u003c\/li\u003e\n        \u003cli\u003e1-inch female BSP parallel brass connections\u003c\/li\u003e\n        \u003cli\u003eNo electrical supply or regeneration cycle required\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__feature-strip\" aria-label=\"Osmio PROMAX-III-XL highlights\"\u003e\n    \u003cdiv\u003e\n      \u003cspan aria-hidden=\"true\"\u003e3\u003c\/span\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eSpecialist stages\u003c\/strong\u003e\n        Complementary treatment media\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan aria-hidden=\"true\"\u003e20″\u003c\/span\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eXL cartridges\u003c\/strong\u003e\n        Greater media volume and capacity\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan aria-hidden=\"true\"\u003e0.2µ\u003c\/span\u003e\n      \u003cp\u003e\n        \u003cstrong\u003eNanoCeram® final stage\u003c\/strong\u003e\n        Fine particle filtration\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cspan aria-hidden=\"true\"\u003e15\u003c\/span\u003e\n      \u003cp\u003e\n        \u003cstrong\u003e15 L\/min optimal flow\u003c\/strong\u003e\n        Published F-Guard guidance\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection id=\"rf-pm3xl-stages\" class=\"rf-pm3xl__alternating rf-pm3xl__alternating--reverse\"\u003e\n    \u003cdiv class=\"rf-pm3xl__media\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_Water_Filter_For_Whole_Home.png?v=1790439883\" alt=\"Three replacement filter stages for the Osmio PROMAX-III-XL\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__copy\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eThe correct PROMAX-III-XL sequence\u003c\/p\u003e\n      \u003ch2\u003eThree distinct stages with no Active Ceramics or KDF\/GAC cartridge\u003c\/h2\u003e\n      \u003cp\u003e\n        The PROMAX-III-XL must not be confused with the PRO-III-XL. Water passes\n        through F-Guard first, catalytic carbon second and NanoCeram® third.\n      \u003c\/p\u003e\n\n      \u003cdiv class=\"rf-pm3xl__stage-list\"\u003e\n        \u003carticle\u003e\n          \u003cspan\u003e01\u003c\/span\u003e\n          \u003cdiv\u003e\n            \u003ch3\u003eF-Guard PFAS \u0026amp; Fluoride Filter · 2 Micron\u003c\/h3\u003e\n            \u003cp\u003e\n              Advanced adsorption media designed to reduce PFAS, PFOA, PFOS,\n              fluoride, chlorine, chloramine, lead, other heavy metals, VOCs,\n              THMs, pesticides, herbicides, pharmaceuticals and microplastics.\n              Published PFAS and fluoride capacity is 21,000 litres, with an\n              optimal flow rate of 15 L\/min. A separate lead, mercury,\n              chloramine and chlorine capacity of 78,358 litres is stated at\n              11.4 L\/min.\n            \u003c\/p\u003e\n          \u003c\/div\u003e\n        \u003c\/article\u003e\n\n        \u003carticle\u003e\n          \u003cspan\u003e02\u003c\/span\u003e\n          \u003cdiv\u003e\n            \u003ch3\u003eCatalytic Chloramine Carbon Block · 0.5 Micron\u003c\/h3\u003e\n            \u003cp\u003e\n              High-performance coconut-shell activated carbon for chlorine and\n              chloramine reduction, helping improve taste and odour while\n              reducing a range of organic chemical compounds. Published\n              chloramine capacity is 7,000 US gallons, approximately 26,500\n              litres, at 15.2 L\/min. Projected chlorine taste and odour capacity\n              is listed above 760,000 litres at the same test flow.\n            \u003c\/p\u003e\n          \u003c\/div\u003e\n        \u003c\/article\u003e\n\n        \u003carticle\u003e\n          \u003cspan\u003e03\u003c\/span\u003e\n          \u003cdiv\u003e\n            \u003ch3\u003eNanoCeram® Pleated Filter · 0.2 Micron\u003c\/h3\u003e\n            \u003cp\u003e\n              Electropositive nanofibre media designed to capture fine\n              sediment, turbidity, cysts, bacteria and submicron particles while\n              retaining useful flow through a large pleated surface area.\n            \u003c\/p\u003e\n          \u003c\/div\u003e\n        \u003c\/article\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"rf-pm3xl__reduction-grid\"\u003e\n        \u003carticle\u003e\n          \u003cstrong\u003e\u0026gt;95% PFAS\u003c\/strong\u003e\n          \u003cspan\u003eIncluding \u0026gt;99% reduction of PFOA and PFOS\u003c\/span\u003e\n        \u003c\/article\u003e\n\n        \u003carticle\u003e\n          \u003cstrong\u003e\u0026gt;92% fluoride\u003c\/strong\u003e\n          \u003cspan\u003eAcross the fluoride compounds listed in the datasheet\u003c\/span\u003e\n        \u003c\/article\u003e\n\n        \u003carticle\u003e\n          \u003cstrong\u003e\u0026gt;99% reduction\u003c\/strong\u003e\n          \u003cspan\u003e\n            Chlorine, chloramine, lead, pharmaceuticals and microplastics\n          \u003c\/span\u003e\n        \u003c\/article\u003e\n\n        \u003carticle\u003e\n          \u003cstrong\u003e\u0026gt;98% reduction\u003c\/strong\u003e\n          \u003cspan\u003e\n            Heavy metals, THMs, VOCs, glyphosate, pesticides and herbicides\n          \u003c\/span\u003e\n        \u003c\/article\u003e\n      \u003c\/div\u003e\n\n      \u003cp class=\"rf-pm3xl__note\"\u003e\n        \u003cstrong\u003eTest conditions matter:\u003c\/strong\u003e Percentage claims are reported\n        in the F-Guard datasheet against its stated test standards. Real-world\n        performance and cartridge life depend on flow, water chemistry,\n        contaminant concentration and total usage.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__clarity\"\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eChoose the correct Osmio system\u003c\/p\u003e\n      \u003ch2\u003ePROMAX-III-XL and PRO-III-XL are different products\u003c\/h2\u003e\n      \u003cp\u003e\n        Similar names conceal different cartridge technologies. The PROMAX\n        model focuses on PFAS, fluoride, chloramine and 0.2-micron final\n        filtration; the PRO-III-XL uses a different Active Ceramics, carbon and\n        KDF\/GAC set.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__clarity-grid\"\u003e\n      \u003carticle\u003e\n        \u003cspan aria-hidden=\"true\"\u003eP\u003c\/span\u003e\n        \u003cdiv\u003e\n          \u003ch3\u003ePROMAX-III-XL\u003c\/h3\u003e\n          \u003cp\u003eF-Guard, catalytic chloramine carbon and NanoCeram®.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cspan aria-hidden=\"true\"\u003eXL\u003c\/span\u003e\n        \u003cdiv\u003e\n          \u003ch3\u003e20-inch cartridge format\u003c\/h3\u003e\n          \u003cp\u003eHigher media volume than the standard 10-inch PROMAX-III.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cspan aria-hidden=\"true\"\u003e!\u003c\/span\u003e\n        \u003cdiv\u003e\n          \u003ch3\u003eNot a water softener\u003c\/h3\u003e\n          \u003cp\u003e\n            It does not remove dissolved hardness minerals or produce soft\n            water.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/article\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__installation\" id=\"rf-pm3xl-installation\"\u003e\n    \u003cdiv class=\"rf-pm3xl__section-heading\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003ePlan before ordering\u003c\/p\u003e\n      \u003ch2\u003eHigh-capacity filtration still requires sufficient pressure and space\u003c\/h2\u003e\n      \u003cp\u003e\n        The three large housings become a substantial, heavy part of the main\n        plumbing. Wall strength, standing pressure, peak demand, pipe size,\n        bypass design and cartridge servicing clearance must all be confirmed.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__steps\"\u003e\n      \u003carticle\u003e\n        \u003cspan\u003e01\u003c\/span\u003e\n        \u003ch3\u003eConfirm at least 3 bar\u003c\/h3\u003e\n        \u003cp\u003e\n          Osmio recommends a minimum standing pressure of 3 bar for optimal\n          performance and reduced impact on household flow.\n        \u003c\/p\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cspan\u003e02\u003c\/span\u003e\n        \u003ch3\u003eSize around the limiting stage\u003c\/h3\u003e\n        \u003cp\u003e\n          F-Guard has a published optimal flow of 15 L\/min. The 70 L\/min figure\n          applies only to an empty individual housing, not the complete system.\n        \u003c\/p\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cspan\u003e03\u003c\/span\u003e\n        \u003ch3\u003eInstall a bypass\u003c\/h3\u003e\n        \u003cp\u003e\n          A three-valve bypass allows the system to be isolated for filter\n          changes without permanently interrupting the property supply.\n        \u003c\/p\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cspan\u003e04\u003c\/span\u003e\n        \u003ch3\u003eAllow servicing clearance\u003c\/h3\u003e\n        \u003cp\u003e\n          Each housing is approximately 617 mm high. Leave at least 2 inches\n          beneath every bowl and space to handle a full, water-filled housing.\n        \u003c\/p\u003e\n      \u003c\/article\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__alternating\"\u003e\n    \u003cdiv class=\"rf-pm3xl__media\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_PROMAX_III_XL_Whole_House_Water_System.png?v=1790439882\" alt=\"Osmio PROMAX-III-XL triple 20-inch antibacterial filter housings\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__copy\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eThree antibacterial XL housings\u003c\/p\u003e\n      \u003ch2\u003eBuilt around full-size 4.5 × 20-inch cartridges\u003c\/h2\u003e\n      \u003cp\u003e\n        The system uses three reinforced Osmio housings with brass 1-inch BSP\n        connections. Silver-based antimicrobial protection is incorporated into\n        the housing plastic to protect the product material.\n      \u003c\/p\u003e\n\n      \u003cul class=\"rf-pm3xl__ticks\"\u003e\n        \u003cli\u003eReinforced polypropylene heads and PET bowls\u003c\/li\u003e\n        \u003cli\u003eEPDM O-rings and pressure-release valve seals\u003c\/li\u003e\n        \u003cli\u003eMaximum housing working pressure: 6 bar\u003c\/li\u003e\n        \u003cli\u003eComplete-system working temperature: 4–38°C\u003c\/li\u003e\n        \u003cli\u003eIndividual housing size: 617 × 190 × 185 mm\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp class=\"rf-pm3xl__note\"\u003e\n        \u003cstrong\u003eImportant:\u003c\/strong\u003e Antimicrobial housing construction protects\n        the housing material. It does not mean the plastic itself disinfects the\n        incoming water.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__maintenance-panel\"\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eMaintenance and commissioning\u003c\/p\u003e\n      \u003ch2\u003eReplace on condition and do not exceed the annual service interval\u003c\/h2\u003e\n      \u003cp\u003e\n        Osmio recommends replacing the three cartridges approximately every 12\n        months, with earlier replacement where usage, source-water quality or\n        declining flow requires it. After replacement, fill slowly, flush until\n        clear and inspect every joint and bowl for leaks.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__life-grid\"\u003e\n      \u003carticle\u003e\n        \u003cstrong\u003e21,000 litres\u003c\/strong\u003e\n        \u003cspan\u003eF-Guard PFAS and fluoride capacity\u003c\/span\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cstrong\u003e≈26,500 litres\u003c\/strong\u003e\n        \u003cspan\u003eCarbon block chloramine capacity\u003c\/span\u003e\n      \u003c\/article\u003e\n\n      \u003carticle\u003e\n        \u003cstrong\u003eUp to 12 months\u003c\/strong\u003e\n        \u003cspan\u003eTypical maximum replacement interval\u003c\/span\u003e\n      \u003c\/article\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__spec\"\u003e\n    \u003cdiv class=\"rf-pm3xl__section-heading\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eTechnical information\u003c\/p\u003e\n      \u003ch2\u003eOsmio PROMAX-III-XL Ultimate specification\u003c\/h2\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__spec-list\"\u003e\n      \u003cdiv\u003e\n        \u003cstrong\u003eProduct type\u003c\/strong\u003e\n        \u003cspan\u003eThree-stage point-of-entry whole-house filter\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eProduct code\u003c\/strong\u003e\n        \u003cspan\u003ePROMAX-III-XL\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eHousing format\u003c\/strong\u003e\n        \u003cspan\u003e3 × antibacterial 4.5 × 20-inch housings\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eStage 1\u003c\/strong\u003e\n        \u003cspan\u003e\n          F-Guard CF2045AHZ, 2 micron; 21,000-litre PFAS\/fluoride capacity\n        \u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eStage 2\u003c\/strong\u003e\n        \u003cspan\u003e\n          CRC 4520-P5 catalytic carbon; 0.5 micron nominal, 1 micron absolute\n        \u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eStage 3\u003c\/strong\u003e\n        \u003cspan\u003eNanoCeram® electropositive pleated filter, 0.2 micron\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eMinimum recommended standing pressure\u003c\/strong\u003e\n        \u003cspan\u003e3 bar\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003ePublished optimal system-sizing flow\u003c\/strong\u003e\n        \u003cspan\u003e15 L\/min for the F-Guard stage\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eMaximum empty-housing flow rating\u003c\/strong\u003e\n        \u003cspan\u003e70 L\/min per housing; not a complete-system output figure\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eConnections\u003c\/strong\u003e\n        \u003cspan\u003e1-inch female BSP parallel brass threads\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eMaximum housing pressure\u003c\/strong\u003e\n        \u003cspan\u003e6 bar\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eWorking temperature\u003c\/strong\u003e\n        \u003cspan\u003e4–38°C for the complete system\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eIndividual housing dimensions\u003c\/strong\u003e\n        \u003cspan\u003e617 mm high × 190 mm wide × 185 mm deep\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eHead and bowl\u003c\/strong\u003e\n        \u003cspan\u003eReinforced polypropylene head with PET bowl\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eO-ring material\u003c\/strong\u003e\n        \u003cspan\u003eEPDM\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eHousing standards listed\u003c\/strong\u003e\n        \u003cspan\u003eIAPMO RT to NSF\/ANSI 42, 61 and 372; CSA B483.1\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eF-Guard material certifications\u003c\/strong\u003e\n        \u003cspan\u003e\n          NSF Standard 42 material requirements and NSF 61 certified materials\n        \u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eCarbon block certification\u003c\/strong\u003e\n        \u003cspan\u003eNSF\/ANSI 42 certified by NSF and WQA\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eInstallation location\u003c\/strong\u003e\n        \u003cspan\u003eIncoming cold main before distribution around the property\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003ePower supply\u003c\/strong\u003e\n        \u003cspan\u003eNot required\u003c\/span\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cstrong\u003eTypical replacement interval\u003c\/strong\u003e\n        \u003cspan\u003eUp to 12 months, subject to usage and water quality\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__documents\"\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eInstallation information\u003c\/p\u003e\n      \u003ch2\u003eRead the installation guide before arranging the plumbing\u003c\/h2\u003e\n      \u003cp\u003e\n        The guide covers pressure checks, bypass planning, cartridge order,\n        mounting, O-ring preparation, commissioning and filter replacement.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003ca href=\"https:\/\/www.osmiowater.co.uk\/manuals\/Osmio%20Whole%20House%20Water%20Filter%20System%20Installation%20Guid.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\n      \u003cspan aria-hidden=\"true\"\u003e↓\u003c\/span\u003e\n      \u003cdiv\u003e\n        \u003cstrong\u003eOpen the installation manual\u003c\/strong\u003e\n        \u003csmall\u003eOfficial Osmio PDF · opens in a new tab\u003c\/small\u003e\n      \u003c\/div\u003e\n    \u003c\/a\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__collections\"\u003e\n    \u003cdiv class=\"rf-pm3xl__section-heading\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eContinue browsing\u003c\/p\u003e\n      \u003ch2\u003eCompare whole-house treatment options\u003c\/h2\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__collection-grid\"\u003e\n      \u003ca href=\"\/collections\/whole-house-filters\"\u003e\n        \u003cspan\u003eW\u003c\/span\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eWhole-house filters\u003c\/strong\u003e\n          \u003csmall\u003eCompare point-of-entry filtration systems\u003c\/small\u003e\n        \u003c\/div\u003e\n        \u003cb aria-hidden=\"true\"\u003e→\u003c\/b\u003e\n      \u003c\/a\u003e\n\n      \u003ca href=\"\/collections\/osmio-water-filters-reverse-osmosis-purifiers\"\u003e\n        \u003cspan\u003eO\u003c\/span\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eShop Osmio\u003c\/strong\u003e\n          \u003csmall\u003eBrowse Osmio systems, filters and accessories\u003c\/small\u003e\n        \u003c\/div\u003e\n        \u003cb aria-hidden=\"true\"\u003e→\u003c\/b\u003e\n      \u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__faq\"\u003e\n    \u003cdiv class=\"rf-pm3xl__section-heading\"\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003eHelpful answers\u003c\/p\u003e\n      \u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n    \u003c\/div\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003e\n        What is the difference between PROMAX-III-XL and PRO-III-XL?\n      \u003c\/summary\u003e\n      \u003cp\u003e\n        The PROMAX-III-XL contains F-Guard, catalytic chloramine carbon and\n        NanoCeram®. The PRO-III-XL uses Active Ceramics, a carbon block and a\n        KDF\/GAC filter. They are not interchangeable product descriptions.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003e\n        How does the XL model differ from the standard PROMAX-III?\n      \u003c\/summary\u003e\n      \u003cp\u003e\n        Both use the same three treatment types, but the XL uses 4.5 × 20-inch\n        cartridges instead of 4.5 × 10-inch cartridges. The XL therefore has a\n        larger footprint and greater media volume.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes the PROMAX-III-XL reduce PFAS and fluoride?\u003c\/summary\u003e\n      \u003cp\u003e\n        Yes. The first-stage F-Guard filter is specifically designed to reduce\n        PFAS compounds, including PFOA and PFOS, together with fluoride and a\n        wider range of chemical contaminants.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes the system remove bacteria?\u003c\/summary\u003e\n      \u003cp\u003e\n        The NanoCeram® stage is designed to reduce bacteria, cysts and fine\n        particles. The system must still be used with microbiologically safe,\n        adequately disinfected water and is not a substitute for correctly\n        specified UV treatment on an unsafe private supply.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill the system deliver 70 litres per minute?\u003c\/summary\u003e\n      \u003cp\u003e\n        Not necessarily. Seventy litres per minute is the maximum rating of an\n        empty individual 20-inch housing. The F-Guard datasheet gives an optimal\n        flow of 15 L\/min. Actual output also depends on incoming pressure,\n        pipework and the condition of all three cartridges.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow often should the cartridges be replaced?\u003c\/summary\u003e\n      \u003cp\u003e\n        Osmio recommends replacement approximately every 12 months. Replace\n        sooner if source-water quality, heavy consumption or falling pressure\n        and flow indicate that a cartridge is becoming exhausted or blocked.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes the PROMAX-III-XL soften hard water?\u003c\/summary\u003e\n      \u003cp\u003e\n        No. It does not remove dissolved calcium and magnesium. A separate\n        ion-exchange water softener is required when hardness and limescale\n        removal are the main objectives.\n      \u003c\/p\u003e\n    \u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"rf-pm3xl__support\"\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"rf-pm3xl__eyebrow\"\u003ePremium product support\u003c\/p\u003e\n      \u003ch2\u003eNeed to confirm pressure, peak flow or installation space?\u003c\/h2\u003e\n      \u003cp\u003e\n        Send us the incoming pipe size, measured standing pressure and flow,\n        property size and available wall dimensions. We will help assess whether\n        the PROMAX-III-XL is appropriately sized before ordering.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"rf-pm3xl__support-actions\"\u003e\n      \u003ca href=\"tel:01216301130\"\u003e\n        \u003cspan aria-hidden=\"true\"\u003e☎\u003c\/span\u003e\n        Telephone\n      \u003c\/a\u003e\n\n      \u003ca href=\"mailto:info@regalflow.co.uk\"\u003e\n        \u003cspan aria-hidden=\"true\"\u003e✉\u003c\/span\u003e\n        Email\n      \u003c\/a\u003e\n\n      \u003ca href=\"https:\/\/wa.me\/441216301130\" target=\"_blank\" rel=\"noopener\"\u003e\n        \u003csvg viewbox=\"0 0 32 32\" aria-hidden=\"true\"\u003e\n          \u003cpath fill=\"currentColor\" d=\"M16.04 3A12.91 12.91 0 0 0 5.1 22.78L3 29l6.42-2.06A12.98 12.98 0 1 0 16.04 3Zm0 23.75a10.77 10.77 0 0 1-5.49-1.5l-.39-.23-3.81 1.22 1.25-3.71-.25-.38a10.82 10.82 0 1 1 8.69 4.6Zm5.93-8.1c-.33-.16-1.92-.95-2.22-1.06-.3-.11-.52-.16-.73.16-.22.33-.84 1.06-1.03 1.28-.19.22-.38.25-.71.08-.32-.16-1.37-.5-2.61-1.61a9.78 9.78 0 0 1-1.81-2.25c-.19-.33-.02-.5.14-.66.15-.15.33-.38.49-.57.16-.19.22-.33.33-.54.1-.22.05-.41-.03-.57-.08-.17-.73-1.76-1-2.41-.27-.64-.54-.55-.74-.56h-.63c-.22 0-.57.08-.87.41-.3.33-1.14 1.12-1.14 2.72s1.17 3.15 1.33 3.37c.16.22 2.3 3.51 5.57 4.92.78.34 1.39.54 1.86.69.78.25 1.49.21 2.05.13.63-.09 1.92-.79 2.19-1.55.27-.76.27-1.41.19-1.55-.08-.14-.3-.22-.62-.38Z\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\n        WhatsApp\n      \u003c\/a\u003e\n\n      \u003ca href=\"\/pages\/contact-regal-flow-support-inquiries\"\u003e\n        \u003cspan aria-hidden=\"true\"\u003e→\u003c\/span\u003e\n        Contact form\n      \u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"Osmio","offers":[{"title":"Default Title","offer_id":62707299484035,"sku":null,"price":764.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_Promax_III_XL_Whole_house_filter.png?v=1790439882","url":"https:\/\/regalflow.co.uk\/products\/osmio-promax-iii-xl-ultimate-whole-house-water-filter","provider":"Regal Flow","version":"1.0","type":"link"}