{"product_id":"matrikx-cto-carbon-block-filter-20-jumbo-4-5-5-or-1-micron-pfas-and-chloramine-reduction-nz","title":"MATRIKX CTO Carbon Block Filter - 20\" Jumbo 4.5\", 5 or 1 Micron, PFAS and Chloramine Reduction NZ","description":"\u003cp\u003e\u003cstrong\u003eThe highest capacity MATRIKX carbon block — for Jumbo (Big Blue) 20\" x 4.5\" housings, with exceptional service life between replacements.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe MATRIKX CTO range offers two carbon block options in the Jumbo 20\" size. Select your variant using the dropdown above.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCTO — 5 micron nominal.\u003c\/strong\u003e Reduces chlorine, PFAS, and chloramine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCTO Plus — 1 micron nominal.\u003c\/strong\u003e Reduces chlorine, PFAS, chloramine, and VOCs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe 20\" Jumbo combines the largest diameter (4.5\") with the longest length, delivering the highest chlorine reduction capacity in the MATRIKX range — over 193,000 litres for the CTO and over 912,000 litres for the CTO Plus. Suited to high-demand whole-house installations, large homes, farms, and commercial applications.\u003c\/p\u003e\n\n\u003cp\u003eBoth are made from 100% coconut shell activated carbon — a renewable material — and manufactured in an ISO 9001 and ISO 14001 certified facility. Certified for sustainability by WQA (S-803). NSF and WQA certified for material safety.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e these filters must be used only with microbiologically safe and adequately disinfected water. They are not a substitute for disinfection.\u003c\/p\u003e\n\n\u003cp\u003eAll performance figures are manufacturer-stated based on internal and independent laboratory testing. NSF\/ANSI 42 and WQA Standard 42 certifications cover material safety requirements only.\u003c\/p\u003e\n\n\u003ch2\u003eWhich variant do I need?\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eVariant\u003c\/th\u003e\n      \u003cth\u003eMicron\u003c\/th\u003e\n      \u003cth\u003eBest suited to\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCTO\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5 micron nominal\u003c\/td\u003e\n      \u003ctd\u003eMaximum-capacity chlorine, PFAS and chloramine reduction at very high flow. Large whole-house systems, farms, and high-demand installations.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCTO Plus\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 micron nominal\u003c\/td\u003e\n      \u003ctd\u003eAll CTO performance plus VOC reduction and finer particulate filtration. Highest capacity carbon block in the MATRIKX range.\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey specs at a glance\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eCTO (5 micron)\u003c\/th\u003e\n      \u003cth\u003eCTO Plus (1 micron)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicron rating\u003c\/td\u003e\n\u003ctd\u003e5 nominal\u003c\/td\u003e\n\u003ctd\u003e1 nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eChlorine reduction capacity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;193,000L @ 26.6 L\/min\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;912,000L @ 26.6 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePFAS reduction capacity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;73,800L @ 11.4 L\/min\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;79,400L @ 11.4 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eChloramine reduction capacity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;22,800L @ 11.4 L\/min\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;45,500L @ 11.4 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVOC reduction capacity\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;17,000L @ 7.6 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePressure drop\u003c\/td\u003e\n\u003ctd\u003e7 psid @ 7 gpm\u003c\/td\u003e\n\u003ctd\u003e7 psid @ 7 gpm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e32-450-20-MATRIKX\u003c\/td\u003e\n\u003ctd\u003e01-450-20-MATRIKX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAll capacity figures are manufacturer-stated. Actual performance depends on influent water quality, flow rate, and system design.\u003c\/p\u003e\n\n\u003ch2\u003eShared 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\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4½\" x 20\" (114mm x 508mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHousing compatibility\u003c\/td\u003e\n\u003ctd\u003eStandard Jumbo 20\" open sump housings (4.5\" diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e100% coconut shell activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMin operating temperature\u003c\/td\u003e\n\u003ctd\u003e4°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax operating temperature\u003c\/td\u003e\n\u003ctd\u003e52°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMin operating pressure\u003c\/td\u003e\n\u003ctd\u003e1.38 bar (20 psig)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax operating pressure\u003c\/td\u003e\n\u003ctd\u003e17 bar (250 psig)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax differential pressure\u003c\/td\u003e\n\u003ctd\u003e6.895 bar (100 psid)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eNSF\/ANSI 42 and WQA Standard 42 — material safety | WQA S-803 sustainability\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFacility\u003c\/td\u003e\n\u003ctd\u003eISO 9001 and ISO 14001 certified\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCalifornia Prop. 65\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWater requirement\u003c\/td\u003e\n\u003ctd\u003eMicrobiologically safe, adequately disinfected water only\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 MATRIKX carbon block cartridge (variant as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the difference between CTO and CTO Plus?\u003c\/h3\u003e\n\u003cp\u003eCTO is a 5 micron nominal carbon block that reduces chlorine, PFAS, and chloramine. CTO Plus is a 1 micron nominal carbon block that does all of this and also reduces VOCs. The CTO Plus 20\" Jumbo has an exceptionally high chlorine reduction capacity — over 912,000 litres at 26.6 L\/min. If you need VOC reduction or finer filtration, choose CTO Plus. For maximum-flow chlorine, PFAS, and chloramine reduction, CTO is the right choice.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does NSF\/ANSI 42 certification mean for these filters?\u003c\/h3\u003e\n\u003cp\u003eOn the MATRIKX CTO and CTO Plus, NSF\/ANSI 42 certification — from both NSF International and WQA — covers material safety requirements only. It confirms the materials in contact with drinking water are safe. It does not certify the performance claims. Those figures are manufacturer-stated based on internal and independent laboratory testing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is PFAS and does this filter reduce it?\u003c\/h3\u003e\n\u003cp\u003ePFAS (per- and polyfluoroalkyl substances) are a group of synthetic chemicals found in some water supplies. The manufacturer states PFAS reduction capacity of \u0026gt;73,800 litres at 11.4 L\/min for the CTO and \u0026gt;79,400 litres at 11.4 L\/min for the CTO Plus, based on \u0026gt;95% reduction at 1500 ppt.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it reduce chloramine?\u003c\/h3\u003e\n\u003cp\u003eYes — both CTO and CTO Plus reduce chloramine. The manufacturer states \u0026gt;83% reduction at 3ppm, with stated capacities shown in the spec table above.\u003c\/p\u003e\n\n\u003ch3\u003eWhy choose the 20\" Jumbo over the 10\" Jumbo?\u003c\/h3\u003e\n\u003cp\u003eDouble the length means roughly double the carbon media, which translates to significantly longer service life between replacements and higher capacity at any given flow rate. If you're running a high-demand whole-house system and want to minimise how often you change cartridges, the 20\" Jumbo is the better investment.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use these filters with tank or bore water?\u003c\/h3\u003e\n\u003cp\u003eOnly if the water supply is microbiologically safe and adequately disinfected. These carbon blocks are not a disinfection device. If your tank or bore water is not disinfected, you need a UV system or other disinfection method upstream of or alongside this filter.\u003c\/p\u003e\n\n\u003ch3\u003eWill it fit my existing housing?\u003c\/h3\u003e\n\u003cp\u003eThe 20\" Jumbo size fits industry-standard Jumbo (Big Blue) 20\" open sump housings with a 4.5\" internal diameter. If you're unsure about housing compatibility, check your housing dimensions before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eHow often should I replace it?\u003c\/h3\u003e\n\u003cp\u003eReplacement depends on water quality, flow rate, and usage. The 20\" Jumbo has the highest capacity in the range — service life between replacements will be substantially longer than smaller sizes. Replace when chlorine taste or odour returns, or when flow drops noticeably. Flush the cartridge after installation before use.\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":"CTO — 5 micron","offer_id":51983956443421,"sku":"20BCTO\/GR","price":195.0,"currency_code":"NZD","in_stock":true},{"title":"CTO Plus — 1 micron","offer_id":51983956476189,"sku":"20BCTO-PLUS","price":250.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1072\/3613\/files\/20BCTOGR_N-2000x2000.webp?v=1783221598","url":"https:\/\/actionoutdoors.kiwi\/products\/matrikx-cto-carbon-block-filter-20-jumbo-4-5-5-or-1-micron-pfas-and-chloramine-reduction-nz","provider":"Action Outdoors Limited","version":"1.0","type":"link"}