{"product_id":"osmio-4-5-x-20-inch-kdf-and-gac-filter","title":"Osmio 4.5 x 20 Inch KDF and GAC Filter","description":"\u003cdiv class=\"rf-aqua-wrap\"\u003e\n\n\u003csection class=\"rf-aqua-hero\"\u003e\n\u003cdiv class=\"rf-aqua-kicker\"\u003eOsmio® Whole House Filter Replacement\u003c\/div\u003e\n\u003ch1\u003e\u003cstrong\u003eOsmio 4.5 x 20 Inch KDF and GAC Filter\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eReplacement KDF and granular activated carbon cartridge for compatible whole house systems, including the Osmio PRO III XL.\u003c\/p\u003e\n\u003cdiv class=\"rf-aqua-btns\"\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-primary\" href=\"#osmio-kdf-gac-specs\"\u003eView Technical Specs\u003c\/a\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/products\/osmio-pro-iii-xl-whole-house-water-filter-system\" title=\"Osmio PRO III XL Whole House Water Filter System\"\u003eView Compatible System\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section rf-aqua-grid-2\"\u003e\n\u003cdiv class=\"rf-aqua-media-wrap\"\u003e\n\u003ca title=\"Osmio 4.5 x 20 Inch KDF and GAC Filter\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_4.5_x_20_Inch_KDF_and_GAC_Filter.png?v=1782574680\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_4.5_x_20_Inch_KDF_and_GAC_Filter.png?v=1782574680\" alt=\"Osmio 4.5 x 20 Inch KDF and GAC Filter cartridge\"\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003e\u003cstrong\u003eKDF and GAC Replacement Cartridge for Whole House Filtration\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"rf-aqua-list\"\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eCompatible Cartridge: \u003c\/h3\u003eDesigned for compatible 4.5 x 20 inch whole house filter housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003ePRO III XL Replacement: \u003c\/h3\u003eUsed as one of the main filter stages within the Osmio PRO III XL Whole House Water Filter System.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eKDF Process Media: \u003c\/h3\u003eCopper and zinc based filtration media used to support chlorine, heavy metal and hydrogen sulphide reduction depending on water conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eGranular Activated Carbon: \u003c\/h3\u003eHelps improve taste and odour while supporting chlorine and organic compound reduction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rf-aqua-inline-links\"\u003eNeed the full system? View the \u003ca href=\"https:\/\/regalflow.co.uk\/products\/osmio-pro-iii-xl-whole-house-water-filter-system\" title=\"Osmio PRO III XL Whole House Water Filter System\"\u003eOsmio PRO III XL Whole House Water Filter System\u003c\/a\u003e or browse \u003ca href=\"https:\/\/regalflow.co.uk\/collections\/filter-replacements\" title=\"Replacement Water Filters\"\u003eReplacement Filters\u003c\/a\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section rf-aqua-grid-2\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat Does the KDF and GAC Filter Do?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis cartridge combines KDF process media with granular activated carbon to support whole house water filtration. KDF media works through a redox reaction, where contaminants are changed into different forms as water passes through the media.\u003c\/p\u003e\n\u003cp\u003eGranular activated carbon then helps improve taste and odour, especially where chlorine is present in the incoming water supply. In plain English, KDF helps support and protect the carbon stage, while the carbon helps polish the water for everyday household use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-panel\"\u003e\n\u003ch2\u003e\u003cstrong\u003eBuy with Confidence\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eYour Osmio replacement filter is supplied brand new and backed by the manufacturer’s warranty, with expert support from Regal Flow if you need help choosing or replacing your filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy KDF and GAC Are Used Together\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"rf-aqua-grid-2\"\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eKDF Supports Chlorine Reduction\u003c\/strong\u003e\n\u003cp\u003eKDF media is commonly used to reduce chlorine before water reaches the carbon stage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eCarbon Improves Taste and Odour\u003c\/strong\u003e\n\u003cp\u003eGranular activated carbon helps reduce chlorine related taste and odour from household water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eUseful for Whole House Systems\u003c\/strong\u003e\n\u003cp\u003eThe cartridge is designed for point of entry use, helping treat water before it reaches taps, showers and appliances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eProtects Later Filter Stages\u003c\/strong\u003e\n\u003cp\u003eKDF media can help reduce fouling and support the performance of downstream filtration media.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-highlight\"\u003e\n\u003ch3\u003e\u003cstrong\u003eThe Technology Stage in the Osmio PRO III XL System\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe KDF and GAC cartridge is one of the most important treatment stages in the Osmio PRO III XL whole house system. It combines the redox action of KDF media with the polishing ability of granular activated carbon, making it especially useful for taste, odour, chlorine reduction and wider whole house filtration support.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-panel\"\u003e\n\u003ch2\u003e\u003cstrong\u003eIs This the Correct Filter for Your System?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"rf-aqua-list\"\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eCorrect For: \u003c\/h3\u003eOsmio PRO III XL Whole House Water Filter System KDF and GAC cartridge replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eAlso Suitable For: \u003c\/h3\u003eCompatible standard 4.5 x 20 inch whole house filter housings where this cartridge type is specified.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eNot Suitable For: \u003c\/h3\u003eSmall under sink filters, countertop systems, reverse osmosis systems or non standard housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eCheck Before Ordering: \u003c\/h3\u003eConfirm the cartridge size, housing size and filter stage before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Buy from Regal Flow?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003csection class=\"rf-aqua-trust\"\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eFast, Free UK Delivery\u003c\/strong\u003eQuick dispatch with no hidden delivery charges.\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eExpert Product Advice\u003c\/strong\u003eSpeak to a real water treatment specialist.\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eManufacturer Warranty\u003c\/strong\u003eCovered against manufacturing defects.\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eIndependent Retailer\u003c\/strong\u003eHonest advice across multiple leading brands.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section rf-aqua-grid-2\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy This Filter Matters in a Whole House System\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eA whole house filter has to deal with much higher water volumes than a drinking water filter. That means the media inside the cartridge needs to be suitable for larger flow rates and wider household use.\u003c\/p\u003e\n\u003cp\u003eIn the Osmio PRO III XL, this filter works alongside the other filter stages rather than replacing them. Each cartridge has a different job, so replacing the correct stage at the correct time helps keep the system working properly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-media-wrap\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_4.5_x_20_Inch_KDF_and_GAC_Filter.png?v=1782574680\" alt=\"Osmio 4.5 x 20 Inch KDF and GAC whole house replacement filter\"\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eKDF and GAC Explained in Plain English\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"rf-aqua-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eKDF Media\u003c\/td\u003e\n\u003ctd\u003eCopper and zinc based process media that uses redox action to help reduce chlorine, heavy metals, hydrogen sulphide and microorganism build up depending on water conditions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGAC\u003c\/td\u003e\n\u003ctd\u003eGranular activated carbon used to improve taste and odour and support chlorine reduction.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhy Combine Them?\u003c\/td\u003e\n\u003ctd\u003eKDF can help protect and extend the useful performance of carbon, while carbon helps improve the finished water quality.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhere It Fits\u003c\/td\u003e\n\u003ctd\u003eUsed as a whole house filter stage inside compatible 4.5 x 20 inch housings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Customer Benefit\u003c\/td\u003e\n\u003ctd\u003eBetter support for taste, odour, chlorine reduction and whole house filtration performance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-highlight\"\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy This Cartridge Replaces Separately from Other Filters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Osmio PRO III XL system uses separate filter stages because each cartridge does a different job. The KDF and GAC filter should be replaced according to its own condition and replacement interval, rather than assuming every cartridge needs changing at the same time.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eComplete Your Filter Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Osmio PRO III XL uses three replacement cartridges, each with a different purpose and replacement interval.\u003c\/p\u003e\n\n\u003cdiv class=\"rf-aqua-grid-2\"\u003e\n\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003ch3\u003eActive Ceramics Filter\u003c\/h3\u003e\n\u003cp\u003eLong life filtration stage. Typically replaced every 2 to 3 years.\u003c\/p\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/products\/osmio-4-5-x-20-inch-active-ceramics-filter\" title=\"Osmio 4.5 x 20 Inch Active Ceramics Filter\"\u003eView Product\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003ch3\u003eKDF and GAC Filter\u003c\/h3\u003e\n\u003cp\u003eSupports chlorine, taste and odour reduction while helping protect downstream filtration media. Typically replaced every 12 to 18 months.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent product\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003ch3\u003eCarbon Block 5 Micron\u003c\/h3\u003e\n\u003cp\u003eFine filtration and activated carbon polishing. Typically replaced every 6 to 12 months.\u003c\/p\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/products\/osmio-4-5-x-20-inch-carbon-block-5-micron\" title=\"Osmio 4.5 x 20 Inch Carbon Block 5 Micron\"\u003eView Product\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003ch3\u003eReplacement Schedule Advice\u003c\/h3\u003e\n\u003cp\u003eEach cartridge works differently, so they should not automatically be replaced at the same time. Replacing the correct filter at the correct interval helps maintain system performance and avoids unnecessary cost.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-aqua-section rf-aqua-grid-2\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003e\u003cstrong\u003eReplacement and Maintenance Guidance\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"rf-aqua-list\"\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eTurn Off the Water Supply: \u003c\/h3\u003eAlways isolate the water supply before opening a whole house filter housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eRelease Pressure First: \u003c\/h3\u003eDepressurise the housing before unscrewing the sump to reduce the risk of water release.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eCheck the Seal: \u003c\/h3\u003eInspect the housing O ring before refitting the sump. A poor seal can cause leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eFlush After Replacement: \u003c\/h3\u003eRun water through the system after fitting the new cartridge to clear loose carbon fines and settle the filter media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-panel\"\u003e\n\u003ch2\u003e\u003cstrong\u003ePractical Advice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIf your water taste, odour or chlorine smell has changed, this cartridge may be one of the first stages to check. If flow has reduced, also check sediment or carbon block stages, as different cartridges affect the system in different ways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-panel\"\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat Comes With This Product?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"rf-aqua-list\"\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003e1 x Osmio KDF and GAC Filter: \u003c\/h3\u003e4.5 x 20 inch replacement cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eFilter Housing Not Included: \u003c\/h3\u003eThis is a cartridge only, not a complete whole house filtration system.\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3 style=\"display: inline; margin: 0; font-size: inherit;\"\u003eCompatible System Sold Separately: \u003c\/h3\u003eThe Osmio PRO III XL whole house system is available separately from Regal Flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eDownloads \u0026amp; Resources\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cdiv class=\"rf-aqua-grid-2\"\u003e\n\n\u003cdiv class=\"rf-aqua-card\" style=\"align-items:center;text-align:center;\"\u003e\n\n\u003ca href=\"https:\/\/regalflow.co.uk\/products\/osmio-pro-iii-xl-whole-house-water-filter-system\" target=\"_blank\" rel=\"noopener\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/PDF_Icon_White_Red.png?v=1781943004\" alt=\"Osmio PRO III XL User Guide\" style=\"width:80px;height:auto;margin-bottom:15px;\"\u003e\n\u003c\/a\u003e\n\n\u003cstrong\u003eCompatible System Information\u003c\/strong\u003e\n\n\u003cp\u003eThis replacement filter is designed for the Osmio PRO III XL Whole House Water Filter System.\u003c\/p\u003e\n\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/products\/osmio-pro-iii-xl-whole-house-water-filter-system\"\u003e\nView Compatible System\n\u003c\/a\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-card\" style=\"align-items:center;text-align:center;\"\u003e\n\n\u003ca href=\"https:\/\/regalflow.co.uk\/collections\/filter-replacements\" target=\"_blank\" rel=\"noopener\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/PDF_Icon_White_Red.png?v=1781943004\" alt=\"Replacement Filter Guide\" style=\"width:80px;height:auto;margin-bottom:15px;\"\u003e\n\u003c\/a\u003e\n\n\u003cstrong\u003eReplacement Filter Guide\u003c\/strong\u003e\n\n\u003cp\u003eNeed help identifying the correct replacement cartridge? Browse our full replacement filter collection.\u003c\/p\u003e\n\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/collections\/filter-replacements\"\u003e\nView Replacement Filters\n\u003c\/a\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/section\u003e\n\u003csection id=\"osmio-kdf-gac-specs\" class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eOsmio 4.5 x 20 Inch KDF and GAC Filter Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"rf-aqua-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWhole house replacement filter cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOsmio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Media\u003c\/td\u003e\n\u003ctd\u003eKDF process media and granular activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4.5 x 20 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible System\u003c\/td\u003e\n\u003ctd\u003eOsmio PRO III XL Whole House Water Filter System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Housing\u003c\/td\u003e\n\u003ctd\u003eCompatible standard 4.5 x 20 inch whole house filter housings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Use\u003c\/td\u003e\n\u003ctd\u003eWhole house chlorine, taste, odour and filtration support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandalone System\u003c\/td\u003e\n\u003ctd\u003eNo, replacement cartridge only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd\u003eManufacturer warranty against manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-inline-links\" style=\"text-align: center;\"\u003eBrowse the \u003ca href=\"https:\/\/regalflow.co.uk\/collections\/osmio-water-filters-reverse-osmosis-purifiers\" title=\"Osmio Water Filters and Reverse Osmosis Purifiers\"\u003eOsmio Collection\u003c\/a\u003e, shop \u003ca href=\"https:\/\/regalflow.co.uk\/collections\/filter-replacements\" title=\"Replacement Filters\"\u003eReplacement Filters\u003c\/a\u003e, or view the \u003ca href=\"https:\/\/regalflow.co.uk\/products\/osmio-pro-iii-xl-whole-house-water-filter-system\" title=\"Osmio PRO III XL Whole House Water Filter System\"\u003eOsmio PRO III XL system\u003c\/a\u003e.\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eExplore More from Regal Flow\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"rf-aqua-grid-2\"\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eOsmio Water Filters and Reverse Osmosis Purifiers\u003c\/strong\u003e\n\u003cp\u003eBrowse Osmio whole house systems, drinking water filters and replacement cartridges.\u003c\/p\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/collections\/osmio-water-filters-reverse-osmosis-purifiers\" title=\"Osmio Water Filters and Reverse Osmosis Purifiers\"\u003eView Osmio Collection\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-aqua-card\"\u003e\n\u003cstrong\u003eReplacement Filters\u003c\/strong\u003e\n\u003cp\u003eFind compatible replacement filters for drinking water, reverse osmosis and whole house filtration systems.\u003c\/p\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/regalflow.co.uk\/collections\/filter-replacements\" title=\"Replacement Filters\"\u003eView Replacement Filters\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-section\"\u003e\n\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cdiv class=\"rf-aqua-panel\" style=\"margin-bottom: 18px;\"\u003e\n\u003ch3\u003e\u003cstrong\u003eIs this the same as the Active Ceramics filter?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNo. This is the KDF and GAC cartridge. The Active Ceramics filter is a separate cartridge used in a different stage of the Osmio PRO III XL system.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-panel\" style=\"margin-bottom: 18px;\"\u003e\n\u003ch3\u003e\u003cstrong\u003eDoes this fit the Osmio PRO III XL?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. This cartridge is designed for use as part of the Osmio PRO III XL Whole House Water Filter System.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-panel\" style=\"margin-bottom: 18px;\"\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat does KDF do?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eKDF is a copper and zinc based process media that uses redox action to help reduce certain contaminants and support the performance of other filter media.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-panel\" style=\"margin-bottom: 18px;\"\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat does GAC do?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eGAC stands for granular activated carbon. It is commonly used to improve taste and odour and to help reduce chlorine from water.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-panel\" style=\"margin-bottom: 18px;\"\u003e\n\u003ch3\u003e\u003cstrong\u003eIs the filter housing included?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNo. This product is the replacement cartridge only. The housing or complete whole house filter system is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rf-aqua-panel\" style=\"margin-bottom: 18px;\"\u003e\n\u003ch3\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWhole house cartridges must be changed carefully. The water supply should be isolated, pressure released and the housing seal checked before refitting. Many customers choose to use a qualified plumber.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/section\u003e\n\n\u003csection class=\"rf-aqua-final\"\u003e\n\u003ch2\u003e\u003cstrong\u003eNeed Help Confirming the Correct Osmio Filter?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIf you are not sure whether this is the correct cartridge for your Osmio PRO III XL system, contact Regal Flow before ordering. We can help you check the filter stage, housing size and replacement schedule.\u003c\/p\u003e\n\u003cdiv class=\"rf-aqua-btns\"\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-primary\" href=\"tel:01216301130\"\u003eCall 0121 630 1130\u003c\/a\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"mailto:info@regalflow.co.uk\"\u003eEmail Product Support\u003c\/a\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-secondary\" href=\"https:\/\/wa.me\/441216301130\" rel=\"noopener\" target=\"_blank\"\u003eWhatsApp Technical Support\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"rf-p-footer-support\"\u003e\n\u003cdiv class=\"rf-p-foot-meta\"\u003e\n\u003ch2\u003e\u003cstrong\u003eReplacement Filter Support\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eUnsure which Osmio cartridge needs replacing? Our support team is available 7 days a week to help you choose the correct filter before you order.\u003c\/p\u003e\n\u003ca class=\"rf-aqua-btn rf-aqua-btn-primary\" href=\"\/pages\/contact\"\u003eContact Support Team\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rf-p-foot-contacts\"\u003e\n\u003cdiv\u003e\n\u003csvg class=\"rf-contact-icon\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#005a70\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\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 class=\"rf-contact-icon\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#005a70\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\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 class=\"rf-contact-icon\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#25D366\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath 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 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\" fill=\"#25D366\" fill-opacity=\"0.15\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \u003cstrong\u003eWhatsApp Chat:\u003c\/strong\u003e \u003ca href=\"https:\/\/wa.me\/441216301130\" rel=\"noopener\" 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\n\u003c\/div\u003e","brand":"Osmio","offers":[{"title":"Default Title","offer_id":58343043170691,"sku":null,"price":152.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/6164\/8673\/files\/Osmio_4.5_x_20_Inch_KDF_and_GAC_Filter.png?v=1782574680","url":"https:\/\/regalflow.co.uk\/products\/osmio-4-5-x-20-inch-kdf-and-gac-filter","provider":"Regal Flow","version":"1.0","type":"link"}