4 inch Air Carbon Filter Odor Control with Australia Virgin Charcoal for Inline Fan

* Effective odor control: protects from chemical irritants and eliminates odors from bathrooms, basements and kitchens. Absorbs odors from pets and smoking, pungent smell and particulates from indoor grow tent. * Versatile applications: item can be used as intake or exhaust filter in a variety of setups including use with inline fan and duct fans, intake and exhaust fans, air exchange fans, ventilation ducts, and other accessories. * Specs: air flow: 200CFM; size: 4inch; flange ducting: 12inch length. 1050+ IAV Australian RC412 activated carbon: High-quality carbon for higher absorption and long service * Reversible flange and base: the flange and bottom can be removed to reverse the charcoal canister, allowing the filter body to be flipped upside-down for reversible smell filtration and an extended service life. * Pre-filter included: we recommend replace the pre-filter every 6 months to protect your filter.