Reusable Foam Filter Cartridges for Intex Type A Pools (20 x 10 cm) Product Description: Changing paper filter cartridges is part of routine pool maintenance, and regular cartridge replacement can be expensive. These washable and reusable foam filters will reduce your costs. The initial cost of this cartridge is slightly higher than a paper cartridge, but it will last much longer. This foam filter will outlast paper cartridges and can be washed and reused multiple times. These foams can be easily washed and replaced. Specifications for Intex Type A: Material: Filter foam. Color: Blue (as shown in the pictures). Fitment: For Intex Type A units. Size (H x D): 10.2 cm x 9.3 cm / 4 x 3.66 inches; center hole drilled: 3 cm / 1.18 inches. Approximate size (H x D): 10.8 cm x 7.3 cm / 4.25 x 2.87 inches; Center hole diameter: 4 cm/1.57 inches (approximately). Size (height x depth): 20 cm x 10 cm/7.87 x 3.94 inches; center hole diameter: 4 cm/1.57 inches (approximately). Package includes: 1 x Pool Filter Cartridge (2-pack). Note: Color may vary slightly due to individual monitor calibration. There may be a slight measurement deviation due to manual measurement.