Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All Quick View Quick View Air Purification, Growing EnvironmentActive Air Carbon Filter 500CFM – 6in x 24in $180.99 Active Air Carbon Filter 500CFM - 6in x 24in Quick View Quick View Air PurificationCanliteFilter9000Plastic500CFM $73.29 Can-Lite 9000 Plastic Filter w/out Flange - 500cfm