Pure Flow Filter

Take control of odor in your grow room with GrowBright carbon filters. The GrowBright Pure Flow 4" Jr Carbon Filter easily adapts to all squirrel cage and centrifugal blowers (some blowers may require an adapter). This makes the GrowBright Pure Flow 4" Jr Carbon Filter a perfect companion to almost every exhaust situation. This filter can really stand up to larger jobs. Packed with highly porous activated carbon, the GrowBright Pure Flow Carbon Filter eliminates all odors as the air is forced by the millions of open fissures in the packed carbon. Covered by a 6 month warranty!