{"product_id":"ac-infinity-refillable-carbon-filter-kit","title":"AC Infinity Refillable Carbon Filter Kit – For Grow Tents","description":"\u003ch2\u003eRefill the Charcoal, Keep the Filter\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAC Infinity Refillable Carbon Filter Kit\u003c\/strong\u003e is a duct carbon filter built to be emptied and refilled rather than thrown away when the charcoal is spent. Its patented, iF Design Award-winning body has \u003cstrong\u003etwist-off aluminium flanges\u003c\/strong\u003e and a sealed chamber, so you can tip out used carbon and pour in fresh \u003cstrong\u003eAustralian virgin RC412 charcoal rated at 1200+ IAV\u003c\/strong\u003e in a few minutes, without tools. Each kit arrives with the filter already charged plus \u003cstrong\u003ea full bag of refill charcoal\u003c\/strong\u003e, a funnel and a scoop, and it comes in \u003cstrong\u003e100mm, 150mm and 200mm\u003c\/strong\u003e duct sizes rated from \u003cstrong\u003e357 to 1,308 m³\/h\u003c\/strong\u003e to match the inline fan in your grow tent or grow room.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefillable carbon filter\u003c\/strong\u003e, charged with 1200+ IAV Australian charcoal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActivated carbon refill\u003c\/strong\u003e of the same Australian charcoal\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefill funnel and scoop\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePre-filter cloths\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHanging straps and rope clip hangers\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefill instead of replace\u003c\/strong\u003e — twist off a flange, empty the chamber and refill; the steel body and flanges go round again\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo filters' worth of carbon in the box\u003c\/strong\u003e — AC Infinity rate the kit, with its included refill, to match the filtration capacity of \u003cstrong\u003etwo standard filters\u003c\/strong\u003e of the same size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo packing required\u003c\/strong\u003e — the enlarged chamber reaches factory carbon compression on its own and is lab-tested to block odours as effectively as a standard filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e38mm bed of RC412 carbon at 1200+ IAV\u003c\/strong\u003e for high adsorption and longer intervals between refills\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible flanges\u003c\/strong\u003e — rotate the filter end to end to use the carbon evenly before you refill\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity-proof build\u003c\/strong\u003e — two layers of galvanised steel mesh with a rust-resistant coating and a rubber seal around the flanges\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIs Your Carbon Filter Losing the Battle Against Odour?\u003c\/h3\u003e\u003cp\u003eEvery carbon filter eventually saturates. Once the charcoal is full, smells from plants, feeds and damp media pass straight through, and with a standard sealed filter the only fix is a whole new unit — often mid-crop. With this kit, falling odour control means a quick refill instead. Keeping fresh carbon in the line lets you run extraction hard enough to manage \u003cstrong\u003eheat, humidity and airflow\u003c\/strong\u003e in the grow space without the smell escaping, and spent charcoal can be composted rather than sent to landfill with a steel filter body.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePick the size\u003c\/strong\u003e that matches your fan's duct diameter, with a filter airflow rating at or above the fan's output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit a pre-filter cloth\u003c\/strong\u003e, hang the filter with the straps or rope hangers, and connect it to the intake side of your inline fan for extraction (or on the inlet to clean incoming air)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamp each joint\u003c\/strong\u003e so all the air passes through the carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen odour starts to get through\u003c\/strong\u003e despite a clean pre-filter, reverse the flanges to bring fresher carbon into the airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTo refill\u003c\/strong\u003e, twist off a flange, empty the chamber, fill it with fresh charcoal using the funnel and scoop, then refit the flange — no compressing needed\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange:\u003c\/strong\u003e 100mm, 150mm or 200mm (4, 6 or 8 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirflow:\u003c\/strong\u003e 210 CFM, 357 m³\/h \/ 410 CFM, 697 m³\/h \/ 770 CFM, 1,308 m³\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon bed:\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 300mm \/ 405mm \/ 503mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e AC Infinity Refillable Carbon Filter (AC-RCF series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e Australian virgin RC412 activated charcoal, 1200+ IAV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMesh:\u003c\/strong\u003e dual galvanised steel, rust-resistant gunmetal finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlanges:\u003c\/strong\u003e aluminium, twist-off and reversible, rubber sealed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e intake or exhaust, with an inline duct fan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100mm (4 in), AC-RCF4:\u003c\/strong\u003e 357 m³\/h (210 CFM) max airflow; 30.0 cm long x 17.9 cm diameter; 4 lb (1.8 kg) charcoal refill supplied\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150mm (6 in), AC-RCF6:\u003c\/strong\u003e 697 m³\/h (410 CFM) max airflow; 40.5 cm long x 22.7 cm diameter; 8 lb (3.6 kg) charcoal refill supplied\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200mm (8 in), AC-RCF8:\u003c\/strong\u003e 1,308 m³\/h (770 CFM) max airflow; 50.3 cm long x 27.8 cm diameter; 16 lb (7.3 kg) charcoal refill supplied\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eHow do I refill the filter?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eTwist off one of the flanges, empty the spent charcoal, then use the included funnel and scoop to fill the chamber with fresh activated carbon and twist the flange back on. The chamber is sized so the carbon settles to the right density without packing it down.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhen does the carbon need replacing?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eWhen odours start to get through even though the pre-filter is clean and the fan is matched to the filter. Reversing the flanges first moves less-used carbon into the airflow and stretches the time between refills; how long a fill lasts depends on airflow, humidity and odour load.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eDoes a refillable filter work as well as a standard carbon filter?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. AC Infinity lab-test the refillable design to block odours as effectively as their standard duct filters, using the same 38mm bed of 1200+ IAV Australian charcoal.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhich size fits my fan?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eMatch the duct diameter to your fan and check the filter's airflow rating is at least the fan's output: the 100mm is rated to 357 m³\/h, the 150mm to 697 m³\/h and the 200mm to 1,308 m³\/h. If your fan moves more air than that, go up a size with a duct reducer.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhat can I do with the used charcoal?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eAC Infinity say spent charcoal from this filter can be composted, so only the carbon is replaced while the steel body and flanges stay in service.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003ch3\u003eWorks Well With\u003c\/h3\u003e\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\n\u003ca href=\"\/products\/ac-infinity-cloudline-lite-a-series-inline-fan\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/Cloudline_Lite_A4_1_e705fab4-261c-4cd3-912f-1b784dde930b.jpg?v=1784653062\u0026amp;width=160\" alt=\"AC Infinity Cloudline LITE A-Series Inline Fan\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eAC Infinity Cloudline LITE A-Series Inline Fan\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eInline fan in the same 4, 6 and 8 in sizes\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/ac-infinity-cloudline-pro-t-series-inline-fan\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/Cloudline_Pro_T4_1_56166e8b-e15f-4a9a-929e-3cfcf6fe850c.jpg?v=1784653063\u0026amp;width=160\" alt=\"AC Infinity Cloudline PRO T-Series Inline Fan\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eAC Infinity Cloudline PRO T-Series Inline Fan\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eController-led fan to pull air through it\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/fast-clamps-4-12\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/Fast-clamps-group-medium_landscape.jpg?v=1746904795\u0026amp;width=160\" alt=\"Padded Fast Clamps\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003ePadded Fast Clamps\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eClamp the filter to the fan or ducting\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"AC Infinity","offers":[{"title":"100mm (4 in)","offer_id":53929890218250,"sku":"ENV-ACIN-052-01","price":82.9,"currency_code":"GBP","in_stock":true},{"title":"150mm (6 in)","offer_id":53929890251018,"sku":"ENV-ACIN-052-02","price":117.99,"currency_code":"GBP","in_stock":true},{"title":"200mm (8 in)","offer_id":53929890283786,"sku":"ENV-ACIN-052-03","price":187.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/ac-infinity-refillable-carbon-filter-kit-100mm-4-in-1.jpg?v=1792261670","url":"https:\/\/hydrocropshop.co.uk\/products\/ac-infinity-refillable-carbon-filter-kit","provider":"Hydro Crop Shop","version":"1.0","type":"link"}