Cartridge 13.6 x 10.6 cmSold in packs of 2 piecesThe filter cartridge is the heart of the filtration system and has the function of keeping the crystal clear water in your swimming pool clear and clean both on the surface and on the bottomIts function is to filter the water in your swimming pool so that the leaves, insects and dirt that settle on the surface pool basin water does not settle on the bottom of the poolEnsures the filter pump works more efficiently< p> Keep your pool water clean and clear with filter cartridges (Type II). This filter cartridge has a diameter of 10.6 cm x 13.6 cm and is designed for filter pumps of 2006 L and 3028 L per hour. They are easy to clean and effectively retain debris when starting filtration. Bestway recommends replacing every 2 weeks for best results.Package Contents1 cartridge