{"product_id":"vanleno-4-carbon-filter-for-inline-duct-fan-4x12-in-wa-virgin-activated-carbon-2-washable-prefilters","title":"vanleno 4\" Carbon Filter for Inline Duct Fan — 4x12 in, WA Virgin Activated Carbon, 2 Washable Prefilters","description":"\u003cp\u003e\u003cstrong\u003evanleno’s 4-inch carbon filter pairs Western Australia virgin activated carbon with dual prefilters and stainless rope hangers to cut odors in small inline duct systems and grow tents.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact inline scrubber is built for tight ventilation runs where space and airflow matter. It uses 1200+ IAV-grade Australian activated carbon packed into a 4\" x 12\" canister with lightweight 1.6 mm aluminum end caps and open mesh to preserve CFM while maximizing contact with the carbon bed. Two washable prefilters extend service life, and the included stainless rope hanger makes installation simple for hydroponic cabinets, grow tents, bathrooms, and other enclosed spaces.\u003c\/p\u003e\n\n\u003ch3\u003eHow effective is the vanleno 4\" carbon filter at removing odors?\u003c\/h3\u003e\n\n\u003cp\u003eThe filter relies on high-absorption Australian virgin activated carbon to capture a wide range of odor-causing compounds and volatile molecules. While performance depends on airflow and contaminant concentration, the design aims for strong removal in small spaces by maximizing carbon surface area and contact time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1200+ IAV-grade virgin activated carbon from Western Australia for high adsorption capacity\u003c\/li\u003e\n  \u003cli\u003e4\" flange x 12\" length tailored for compact inline duct setups\u003c\/li\u003e\n  \u003cli\u003e210 CFM rated airflow supports common small inline fans\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features help the filter last longer and keep airflow high?\u003c\/h3\u003e\n\n\u003cp\u003eThe vanleno filter balances filtration depth and low resistance using larger open mesh and thin aluminum end caps. Two washable prefilters trap dust and particulates before they reach the carbon, reducing clogging and extending the service interval.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInner and outer meshes with 53% open area to reduce pressure drop\u003c\/li\u003e\n  \u003cli\u003eTwo washable prefilters included to block particle buildup\u003c\/li\u003e\n  \u003cli\u003e1.6 mm aluminum tops and bases cut weight without sacrificing durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install this carbon filter in a grow tent or duct system?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward: attach the 4\" ducting to the filter flange and secure the unit with the included rope hanger to isolate vibration. Position the filter so air flows from the room, through the carbon, and out via the inline fan for best odor control.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes heavy-duty stainless steel rope hanger for secure mounting\u003c\/li\u003e\n  \u003cli\u003eStandard 4\" flange fits common inline duct fans and ducting\u003c\/li\u003e\n  \u003cli\u003ePrefilter sleeves slide on easily and are washable for reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and replacement options are available?\u003c\/h3\u003e\n\n\u003cp\u003eRegularly wash or replace the prefilters to maintain airflow and protect the carbon. When adsorption capacity decreases, swap in replacement carbon sleeves to restore performance without buying a new canister.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo washable prefilters included; replace when damaged or overly soiled\u003c\/li\u003e\n  \u003cli\u003eReplacement carbon sleeves available to refresh adsorption capacity\u003c\/li\u003e\n  \u003cli\u003ePeriodic visual checks help determine when carbon is spent\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: vanleno’s 4-inch carbon filter is designed for hobbyist growers, small-scale hydroponic setups, and homeowners who need compact odor control for bathrooms, basements, or closets. It suits anyone with a 4\" inline fan and limited space who wants a lightweight, easy-to-install scrubber that prioritizes airflow, serviceability, and high-quality Australian activated carbon.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What size fan works best with this 4\" filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use a 4\" inline fan rated up to ~210 CFM to preserve airflow and achieve optimal odor control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the included prefilters reusable?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the two washable prefilters can be cleaned and reused to extend the carbon life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"vanleno","offers":[{"title":"Default Title","offer_id":56830360813908,"sku":"B085DMC2LX","price":79.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/vanleno-4inch-front-view.jpg?v=1787004044","url":"https:\/\/gardenluxe.co.uk\/products\/vanleno-4-carbon-filter-for-inline-duct-fan-4x12-in-wa-virgin-activated-carbon-2-washable-prefilters","provider":"Gardenluxe Uk","version":"1.0","type":"link"}