{"product_id":"pentek-rfc-bb-radial-flow-carbon-filter-10-jumbo-4-5-high-flow-gac-nz","title":"Pentek RFC-BB Radial Flow Carbon Filter - 10\" Jumbo 4.5\", High Flow GAC NZ","description":"\u003cp\u003e\u003cstrong\u003eA high-flow granular activated carbon cartridge for Jumbo (Big Blue) 10\" x 4.5\" housings — low pressure drop with significantly reduced carbon fines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Pentek RFC-BB is a radial flow GAC cartridge designed for point-of-entry and high-flow whole-house applications. The unique radial flow design passes water through a bed of granular activated carbon from the outside in, reducing chlorine, taste, and odour at high flow rates while keeping pressure drop low. The 70-micron porous polyethylene outer shell contains the carbon bed and significantly reduces the release of carbon fines into the filtered water — a common issue with standard GAC cartridges.\u003c\/p\u003e\n\n\u003cp\u003eNSF\/ANSI Standard 42 certified for material requirements only. Chlorine reduction figures are manufacturer-stated.\u003c\/p\u003e\n\n\u003ch2\u003eKey specs at a glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFilter media: granular activated carbon (GAC)\u003c\/li\u003e\n  \u003cli\u003eSize: 4.5\" x 9.75\" (114mm x 248mm) — Jumbo \/ Big Blue 10\"\u003c\/li\u003e\n  \u003cli\u003eChlorine reduction capacity: \u0026gt;189,270L @ 7.6 L\/min (manufacturer-stated)\u003c\/li\u003e\n  \u003cli\u003eInitial pressure drop: 0.06 bar (0.90 psi) @ 7.6 L\/min\u003c\/li\u003e\n  \u003cli\u003eTemperature range: 4.4–51.7°C\u003c\/li\u003e\n  \u003cli\u003eNSF\/ANSI 42 certified — material requirements only\u003c\/li\u003e\n  \u003cli\u003eSuits point-of-entry and high-flow whole-house installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow it works\u003c\/h2\u003e\n\u003cp\u003eStandard GAC cartridges can release carbon fines — fine carbon particles — into filtered water, particularly when flow rate varies. The RFC-BB uses a radial flow design: water enters through the 70-micron porous polyethylene outer shell and flows radially inward through the carbon bed to the polypropylene core. This construction contains the carbon bed and substantially reduces fines in the filtered water while keeping pressure drop low — making it well suited to high-flow whole-house applications where consistent water quality matters.\u003c\/p\u003e\n\n\u003ch2\u003eFull specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFilter media\u003c\/td\u003e\n\u003ctd\u003eGranular activated carbon (GAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOuter shell\u003c\/td\u003e\n\u003ctd\u003e70-micron porous polyethylene\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\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4.50\" x 9.75\" (114mm x 248mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHousing compatibility\u003c\/td\u003e\n\u003ctd\u003eJumbo (Big Blue) 10\" housings\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInitial pressure drop\u003c\/td\u003e\n\u003ctd\u003e0.06 bar (0.90 psi) @ 7.6 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eChlorine reduction capacity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;189,270L @ 7.6 L\/min (manufacturer-stated)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e4.4–51.7°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNSF certification\u003c\/td\u003e\n\u003ctd\u003eNSF\/ANSI 42 — material requirements only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eRFC-BB (155141-43)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Pentek RFC-BB radial flow carbon cartridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is a radial flow carbon cartridge and how is it different from a carbon block?\u003c\/h3\u003e\n\u003cp\u003eA radial flow cartridge uses loose granular activated carbon packed between an outer shell and an inner core. Water flows radially inward through the carbon bed. Unlike a carbon block, the GAC design offers very low pressure drop and high flow capacity — better suited to main water line and whole-house applications where flow rate is more important than fine particulate filtration.\u003c\/p\u003e\n\n\u003ch3\u003eWhy does the radial flow design reduce carbon fines?\u003c\/h3\u003e\n\u003cp\u003eThe RFC-BB's 70-micron porous polyethylene outer shell contains the carbon bed and acts as a barrier that substantially reduces the release of carbon fines into the filtered water — a common issue with standard loose GAC cartridges.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does NSF\/ANSI 42 certification mean for this cartridge?\u003c\/h3\u003e\n\u003cp\u003eThe NSF\/ANSI 42 certification on the RFC-BB covers material requirements only — it confirms the materials in contact with drinking water are safe. It does not certify the chlorine reduction performance claim. That figure is manufacturer-stated based on internal testing.\u003c\/p\u003e\n\n\u003ch3\u003eWill it fit my existing housing?\u003c\/h3\u003e\n\u003cp\u003eYes, if your housing is a standard Jumbo (Big Blue) 10\" x 4.5\" size. If you're unsure, check your housing's internal diameter before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eHow often should I replace it?\u003c\/h3\u003e\n\u003cp\u003eReplacement depends on water quality and usage. The manufacturer states a chlorine reduction capacity of over 189,270 litres at 7.6 L\/min. Replace when chlorine taste or odour returns, or when flow drops noticeably.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use this on tank or bore water?\u003c\/h3\u003e\n\u003cp\u003eYes, as a chlorine, taste, and odour reduction stage on disinfected supplies. This cartridge does not filter fine sediment — pair with a sediment pre-filter on tank or bore supplies.\u003c\/p\u003e\u003cdiv style=\"background:#fff3cd;border:1px solid #ffc107;border-radius:8px;padding:16px;margin:20px 0;\"\u003e\n\u003cp style=\"margin:0 0 8px;font-weight:700;color:#856404;\"\u003e⚠️ Disclaimer – Collective \/ Dropship Product\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:14px;color:#856404;\"\u003eThis product is supplied \u0026amp; shipped directly by the brand via Shopify Collective. Estimated delivery: 2–4 working days NZ-wide. Action Outdoors is not responsible for shipping delays from the supplier.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Filtration Station NZ","offers":[{"title":"Default Title","offer_id":51983956050205,"sku":"10BRFGAC","price":100.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1072\/3613\/files\/10BRFGAC_1_-2000x2000.webp?v=1783221598","url":"https:\/\/actionoutdoors.kiwi\/zh\/products\/pentek-rfc-bb-radial-flow-carbon-filter-10-jumbo-4-5-high-flow-gac-nz","provider":"Action Outdoors Limited","version":"1.0","type":"link"}