Made of high quality material, durable and practical to use. Reusable Washable Filter: Changing your paper filter cartridge is part of your routine maintenance for your pool and regular replacement of the cartridge can prove costly. These washable and re-usable foam filters will reduce your costs. Long Working Time: Initial cost of this cartridge is slightly more than a paper cartridge yet will outlast a cartridge by a long way. Durable: This Foam filter will outlast your paper cartridges and can be washed and re-used several times over. Reusable Washable: Advises changing a paper cartridge each week, whereas these foams can simply be washed and put back. Keep Water Clean:Will be a great water cleaner for swimming pool. You should see a foam filter last around 2 months. Specification: Fitment:For Intex Type A Material: Sponge Size(HxD): Approx. 20 x 10 cm/7.87 x 3.93 inch Center Hole Drilled: Approx. 40 mm/1.57 inch Package Included: 1 x Filter Sponge