Home / Product Width / 18.11 18.11 Showing all 2 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Black Ops Carbon Filter 12 in x 39 in 1700 CFM $316.95 Add to cart Black Ops Carbon Filter 12 in x 48 in 2200 CFM $356.95 Add to cart