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 PurificationActive Air Inline Carbon Filter – 8″x30″ $331.76 Active Air Inline Carbon Filter - 8"x30" Quick View Quick View Air PurificationPhat Filter 4″ x 8″ – 150 CFM $94.95 Phat Filter 4" x 8" - 150 CFM