{"product_id":"pentair-20-jumbo-radial-flow-carbon-water-filter-cartridge","title":"Pentair 20\" Jumbo Radial Flow Carbon Water Filter Cartridge","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eImprove water quality while maintaining strong whole-house water flow with the \u003cstrong\u003ePentair 20\" Jumbo Radial Flow Carbon Water Filter Cartridge\u003c\/strong\u003e, designed for high-capacity chlorine, taste and odour treatment.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair Pentek RFC20-BB\u003c\/strong\u003e uses a radial flow design that passes water through a bed of \u003cstrong\u003egranular activated carbon (GAC)\u003c\/strong\u003e from the outside towards the centre of the cartridge. This provides high-capacity carbon treatment while maintaining a very low pressure drop.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e70 micron porous polyethylene outer shell\u003c\/strong\u003e contains the carbon bed and significantly reduces the release of carbon fines into the filtered water.\u003c\/p\u003e\n\u003cp\u003eWith a manufacturer-stated chlorine reduction capacity of more than \u003cstrong\u003e378,541 litres at 15.2 L\/min\u003c\/strong\u003e and an initial pressure drop of only \u003cstrong\u003e0.06 bar at 15.1 L\/min\u003c\/strong\u003e, the RFC20-BB is particularly well suited to large homes, farms and high-demand point-of-entry filtration systems.\u003c\/p\u003e\n\u003ch2\u003ePentair Pentek RFC20-BB\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair Pentek RFC20-BB\u003c\/strong\u003e is a high-capacity granular activated carbon cartridge designed for compatible \u003cstrong\u003e20\" Jumbo \/ Big Blue water filter housings\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eUnlike conventional GAC cartridges that direct water lengthwise through the media, the RFC20-BB uses a \u003cstrong\u003eradial flow configuration\u003c\/strong\u003e. Water enters through the porous outer shell and travels inward through the granular activated carbon before reaching the spun polypropylene core.\u003c\/p\u003e\n\u003cp\u003eThis construction provides chlorine, taste and odour treatment while maintaining a low pressure drop.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e20\" long\u003c\/strong\u003e, the RFC20-BB provides double the carbon bed volume of the 10\" RFC-BB, delivering greater treatment capacity and longer service life between cartridge changes.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose This Water Filter Cartridge?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadial flow GAC design\u003c\/strong\u003e — water travels inward through the granular activated carbon bed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-capacity carbon treatment\u003c\/strong\u003e — manufacturer-stated chlorine capacity of more than \u003cstrong\u003e378,541 litres at 15.2 L\/min\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery low pressure drop\u003c\/strong\u003e — initial pressure drop of only \u003cstrong\u003e0.06 bar (0.90 psi) at 15.1 L\/min\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine reduction\u003c\/strong\u003e — activated carbon treats chlorine in the incoming water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaste and odour improvement\u003c\/strong\u003e — helps improve common drinking-water taste and odour issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced carbon fines\u003c\/strong\u003e — 70 micron porous polyethylene outer shell helps contain the granular carbon media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20\" Jumbo format\u003c\/strong\u003e — provides double the carbon bed volume of the 10\" RFC-BB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-flow whole-house design\u003c\/strong\u003e — suited to point-of-entry and high-demand filtration applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge-home and farm applications\u003c\/strong\u003e — greater capacity reduces the frequency of cartridge replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature of 4.4–51.7°C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNSF\/ANSI 42 materials certification\u003c\/strong\u003e — certification applies to material requirements only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe Pentair Pentek RFC20-BB uses \u003cstrong\u003eradial flow filtration\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWater first enters through the \u003cstrong\u003e70 micron porous polyethylene outer shell\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt then travels radially inward through the bed of \u003cstrong\u003egranular activated carbon\u003c\/strong\u003e, where the carbon reduces chlorine and compounds responsible for unpleasant taste and odour.\u003c\/p\u003e\n\u003cp\u003eThe treated water then reaches the \u003cstrong\u003espun polypropylene core\u003c\/strong\u003e before exiting the cartridge.\u003c\/p\u003e\n\u003cp\u003eThe flow path can be represented as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e70 Micron Porous Polyethylene Outer Shell → Granular Activated Carbon → Spun Polypropylene Core\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis radial flow design provides a large carbon-treatment area while keeping pressure drop low.\u003c\/p\u003e\n\u003cp\u003eThe larger \u003cstrong\u003e20\" cartridge length\u003c\/strong\u003e provides double the carbon bed volume of the 10\" RFC-BB, giving the RFC20-BB significantly greater chlorine treatment capacity.\u003c\/p\u003e\n\u003ch2\u003eReduced Carbon Fines\u003c\/h2\u003e\n\u003cp\u003eLoose granular activated carbon cartridges can release fine carbon particles, known as \u003cstrong\u003ecarbon fines\u003c\/strong\u003e, into the filtered water.\u003c\/p\u003e\n\u003cp\u003eThe Pentair RFC20-BB uses a \u003cstrong\u003e70 micron porous polyethylene outer shell\u003c\/strong\u003e to contain the carbon bed and substantially reduce the release of these fines.\u003c\/p\u003e\n\u003cp\u003eThis allows the cartridge to retain the high-flow, low-pressure-drop characteristics of granular activated carbon while reducing the amount of loose carbon material passing downstream.\u003c\/p\u003e\n\u003ch2\u003eBest Suited For\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair 20\" Jumbo Radial Flow Carbon Water Filter Cartridge\u003c\/strong\u003e is well suited to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhole-house water filtration\u003c\/li\u003e\n\u003cli\u003ePoint-of-entry filtration\u003c\/li\u003e\n\u003cli\u003eHigh-flow carbon filtration\u003c\/li\u003e\n\u003cli\u003eHigh-demand residential systems\u003c\/li\u003e\n\u003cli\u003eLarge homes\u003c\/li\u003e\n\u003cli\u003eFarms and rural properties\u003c\/li\u003e\n\u003cli\u003eChlorine reduction\u003c\/li\u003e\n\u003cli\u003eTaste and odour treatment\u003c\/li\u003e\n\u003cli\u003eMains-water filtration\u003c\/li\u003e\n\u003cli\u003eResidential drinking-water treatment\u003c\/li\u003e\n\u003cli\u003e20\" Jumbo filtration systems\u003c\/li\u003e\n\u003cli\u003eBig Blue filter housings\u003c\/li\u003e\n\u003cli\u003eMulti-stage water filtration systems\u003c\/li\u003e\n\u003cli\u003eApplications where low pressure drop is important\u003c\/li\u003e\n\u003cli\u003eSystems where longer cartridge life between replacements is desirable\u003c\/li\u003e\n\u003cli\u003eDisinfected tank or bore-water systems where carbon treatment is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhere tank or bore water contains significant sediment, install an appropriate \u003cstrong\u003esediment pre-filter upstream\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003e\u003cstrong\u003ePentair Pentek RFC20-BB\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRFC20-BB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e155247-43\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCartridge Size\u003c\/td\u003e\n\u003ctd\u003e20\" Jumbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4.50\" × 20\" (114 × 508mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eRadial flow carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Media\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eGranular activated carbon (GAC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Shell\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e70 micron porous polyethylene\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore\u003c\/td\u003e\n\u003ctd\u003eSpun polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEndcaps\u003c\/td\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGaskets\u003c\/td\u003e\n\u003ctd\u003eBuna-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorine Reduction\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTaste \u0026amp; Odour Reduction\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorine Reduction Capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u0026gt;378,541 L at 15.2 L\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Pressure Drop\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e0.06 bar (0.90 psi) at 15.1 L\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4.4–51.7°C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Compatibility\u003c\/td\u003e\n\u003ctd\u003e20\" Jumbo \/ Big Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNSF\/ANSI 42 — material requirements only\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eRadial Flow GAC vs Carbon Block\u003c\/h2\u003e\n\u003cp\u003eA radial flow GAC cartridge and a carbon block cartridge both use activated carbon, but their construction and flow characteristics are different.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair RFC20-BB uses loose granular activated carbon\u003c\/strong\u003e contained between its porous outer shell and inner core. Water travels radially inward through the carbon bed.\u003c\/p\u003e\n\u003cp\u003eThis construction provides \u003cstrong\u003ehigh-flow carbon treatment with very low pressure drop\u003c\/strong\u003e, making it particularly useful on main water lines and whole-house systems.\u003c\/p\u003e\n\u003cp\u003eA carbon block uses compressed carbon media and can combine carbon treatment with finer particulate filtration, depending on its micron rating.\u003c\/p\u003e\n\u003cp\u003eChoose the RFC20-BB where \u003cstrong\u003ehigh-capacity chlorine, taste and odour treatment with low pressure drop\u003c\/strong\u003e is the priority.\u003c\/p\u003e\n\u003ch2\u003eChlorine Treatment Capacity\u003c\/h2\u003e\n\u003cp\u003eThe Pentair Pentek RFC20-BB has a manufacturer-stated chlorine reduction capacity of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore than 378,541 litres at 15.2 L\/min\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe larger 20\" cartridge provides double the carbon bed volume of the 10\" RFC-BB, resulting in significantly greater treatment capacity.\u003c\/p\u003e\n\u003cp\u003eActual cartridge life will depend on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncoming chlorine concentration\u003c\/li\u003e\n\u003cli\u003eWater quality\u003c\/li\u003e\n\u003cli\u003eDaily water consumption\u003c\/li\u003e\n\u003cli\u003eOperating flow rate\u003c\/li\u003e\n\u003cli\u003eSediment loading\u003c\/li\u003e\n\u003cli\u003eOther substances present in the incoming water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplace the cartridge when chlorine taste or odour begins to return or carbon-treatment performance noticeably declines.\u003c\/p\u003e\n\u003ch2\u003eFlow \u0026amp; Pressure Drop\u003c\/h2\u003e\n\u003cp\u003eOne of the key advantages of the Pentair RFC20-BB is its combination of \u003cstrong\u003ehigh-capacity treatment and very low initial pressure drop\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e15.1 L\/min\u003c\/strong\u003e, the initial pressure drop is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e0.06 bar (0.90 psi)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe manufacturer-stated chlorine reduction capacity is more than \u003cstrong\u003e378,541 litres at 15.2 L\/min\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis makes the cartridge particularly useful in whole-house applications where maintaining water pressure and flow is important.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the 20\" Over the 10\" RFC-BB?\u003c\/h2\u003e\n\u003cp\u003eThe 20\" RFC20-BB provides \u003cstrong\u003edouble the carbon bed volume\u003c\/strong\u003e of the 10\" RFC-BB.\u003c\/p\u003e\n\u003cp\u003eThe larger carbon bed delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGreater chlorine treatment capacity\u003c\/li\u003e\n\u003cli\u003eLonger service life between cartridge replacements\u003c\/li\u003e\n\u003cli\u003eHigher capacity at a given flow rate\u003c\/li\u003e\n\u003cli\u003eBetter suitability for high-demand water systems\u003c\/li\u003e\n\u003cli\u003eLess frequent cartridge changing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor larger homes, farms and high-demand whole-house systems, the \u003cstrong\u003e20\" RFC20-BB is the higher-capacity option\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eKeep in mind that the 10\" and 20\" cartridges require their corresponding housing sizes and are not interchangeable.\u003c\/p\u003e\n\u003ch2\u003eNSF\/ANSI 42 Certification\u003c\/h2\u003e\n\u003cp\u003eThe Pentair RFC20-BB is \u003cstrong\u003eNSF\/ANSI Standard 42 certified for material requirements only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis certification relates to the materials used in the cartridge that come into contact with drinking water.\u003c\/p\u003e\n\u003cp\u003eIt does \u003cstrong\u003enot\u003c\/strong\u003e certify the stated chlorine reduction performance.\u003c\/p\u003e\n\u003cp\u003eThe chlorine reduction capacity of \u003cstrong\u003e\u0026gt;378,541 litres at 15.2 L\/min is manufacturer-stated\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eThe Pentair RFC20-BB is designed for use in a \u003cstrong\u003ecompatible 20\" Jumbo \/ Big Blue water filter housing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe cartridge measures \u003cstrong\u003e4.50\" × 20\" (114 × 508mm)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTo replace the cartridge:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eTurn off the water supply.\u003c\/li\u003e\n\u003cli\u003eRelease pressure from the filter housing.\u003c\/li\u003e\n\u003cli\u003eRemove the filter housing sump.\u003c\/li\u003e\n\u003cli\u003eRemove the existing cartridge.\u003c\/li\u003e\n\u003cli\u003eClean the inside of the housing if required.\u003c\/li\u003e\n\u003cli\u003eCheck that the housing O-ring is clean and seated correctly.\u003c\/li\u003e\n\u003cli\u003eInsert the new Pentair RFC20-BB cartridge.\u003c\/li\u003e\n\u003cli\u003eReassemble the housing.\u003c\/li\u003e\n\u003cli\u003eSlowly restore water pressure.\u003c\/li\u003e\n\u003cli\u003eCheck the housing carefully for leaks.\u003c\/li\u003e\n\u003cli\u003eFlush the new carbon cartridge before normal use.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eMaintenance\u003c\/h2\u003e\n\u003cp\u003eCarbon cartridge life depends on incoming water quality, chlorine concentration, water consumption and operating conditions.\u003c\/p\u003e\n\u003cp\u003eThe Pentair RFC20-BB has a manufacturer-stated chlorine reduction capacity of more than \u003cstrong\u003e378,541 litres at 15.2 L\/min\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eReplace the cartridge when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChlorine taste begins to return\u003c\/li\u003e\n\u003cli\u003eUnpleasant odour returns\u003c\/li\u003e\n\u003cli\u003eCarbon-treatment performance noticeably declines\u003c\/li\u003e\n\u003cli\u003eWater flow becomes excessively restricted\u003c\/li\u003e\n\u003cli\u003eThe cartridge reaches the end of its useful treatment capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhere incoming water contains significant sediment, installing an appropriate sediment filter upstream can help protect the carbon media.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1 × Pentair Pentek RFC20-BB 20\" Jumbo Radial Flow Carbon Water Filter Cartridge\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e RFC20-BB\u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e \u003cstrong\u003e155247-43\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does the Pentair RFC20-BB do?\u003c\/h3\u003e\n\u003cp\u003eThe Pentair RFC20-BB uses \u003cstrong\u003egranular activated carbon to reduce chlorine, unpleasant taste and odour\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts radial flow construction provides high-capacity carbon treatment while maintaining a very low pressure drop.\u003c\/p\u003e\n\u003ch3\u003eWhat does GAC mean?\u003c\/h3\u003e\n\u003cp\u003eGAC stands for \u003cstrong\u003eGranular Activated Carbon\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe activated carbon is present as loose granules rather than being compressed into a solid carbon block.\u003c\/p\u003e\n\u003ch3\u003eWhat is radial flow?\u003c\/h3\u003e\n\u003cp\u003eInstead of directing water lengthwise through the cartridge, the RFC20-BB directs water \u003cstrong\u003efrom the outside inward through the granular activated carbon bed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis provides a large treatment area while helping maintain low pressure drop.\u003c\/p\u003e\n\u003ch3\u003eDoes it reduce chlorine?\u003c\/h3\u003e\n\u003cp\u003eYes. The RFC20-BB is designed for chlorine reduction.\u003c\/p\u003e\n\u003cp\u003ePentair states a chlorine reduction capacity of more than \u003cstrong\u003e378,541 litres at 15.2 L\/min\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes it improve taste and odour?\u003c\/h3\u003e\n\u003cp\u003eYes. The granular activated carbon reduces chlorine and helps improve unpleasant taste and odour.\u003c\/p\u003e\n\u003ch3\u003eWhat are carbon fines?\u003c\/h3\u003e\n\u003cp\u003eCarbon fines are small carbon particles that can be released from loose granular activated carbon media.\u003c\/p\u003e\n\u003cp\u003eThe RFC20-BB uses a \u003cstrong\u003e70 micron porous polyethylene outer shell\u003c\/strong\u003e to contain the carbon bed and substantially reduce the release of carbon fines into the filtered water.\u003c\/p\u003e\n\u003ch3\u003eIs this a carbon block filter?\u003c\/h3\u003e\n\u003cp\u003eNo. The RFC20-BB uses \u003cstrong\u003egranular activated carbon (GAC)\u003c\/strong\u003e rather than compressed carbon block media.\u003c\/p\u003e\n\u003ch3\u003eWhat is the pressure drop?\u003c\/h3\u003e\n\u003cp\u003eThe initial pressure drop is only \u003cstrong\u003e0.06 bar (0.90 psi) at 15.1 L\/min\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis low pressure drop makes the cartridge well suited to high-flow point-of-entry and whole-house applications.\u003c\/p\u003e\n\u003ch3\u003eHow much water can it treat?\u003c\/h3\u003e\n\u003cp\u003ePentair states a chlorine reduction capacity of more than \u003cstrong\u003e378,541 litres at 15.2 L\/min\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eActual service life depends on incoming water quality, chlorine concentration, water usage and operating conditions.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the 20\" instead of the 10\" RFC-BB?\u003c\/h3\u003e\n\u003cp\u003eThe 20\" RFC20-BB provides \u003cstrong\u003edouble the carbon bed volume of the 10\" RFC-BB\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis gives it greater treatment capacity and longer service life between replacements, making it particularly suitable for \u003cstrong\u003elarge homes, farms and high-demand whole-house systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes the 70 micron outer shell make this a 70 micron sediment filter?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e70 micron specification refers to the porous polyethylene outer shell used to contain the carbon bed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe supplied specifications do not describe the RFC20-BB as a dedicated 70 micron sediment cartridge.\u003c\/p\u003e\n\u003cp\u003eWhere significant sediment is present, use an appropriate sediment pre-filter upstream.\u003c\/p\u003e\n\u003ch3\u003eCan I use it on tank or bore water?\u003c\/h3\u003e\n\u003cp\u003eIt can be used as a \u003cstrong\u003echlorine, taste and odour treatment stage on adequately disinfected water supplies\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhere tank or bore water contains sediment, pair the RFC20-BB with an appropriate sediment pre-filter.\u003c\/p\u003e\n\u003ch3\u003eWill it fit my 20\" Jumbo housing?\u003c\/h3\u003e\n\u003cp\u003eThe RFC20-BB is designed for compatible \u003cstrong\u003e20\" Jumbo \/ Big Blue water filter housings\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe cartridge itself measures \u003cstrong\u003e4.50\" × 20\" (114 × 508mm)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eCan I put this in a 10\" Jumbo housing?\u003c\/h3\u003e\n\u003cp\u003eNo. The RFC20-BB is a \u003cstrong\u003e20\" cartridge\u003c\/strong\u003e and requires a compatible 20\" Jumbo housing.\u003c\/p\u003e\n\u003cp\u003eThe 10\" and 20\" RFC-BB cartridges are not interchangeable between housing lengths.\u003c\/p\u003e","brand":"Filtration Station NZ","offers":[{"title":"Default Title","offer_id":52839323762973,"sku":"20BRFGAC","price":161.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1072\/3613\/files\/20brfgac_new2-2000x2000.webp?v=1788206737","url":"https:\/\/actionoutdoors.kiwi\/products\/pentair-20-jumbo-radial-flow-carbon-water-filter-cartridge","provider":"Action Outdoors Limited","version":"1.0","type":"link"}