Cartridge measuring 13.6 x 10.6 cm Sold in packs of 2 pieces The filter cartridge is at the heart of the filtration system and has the role of maintaining the water in your swimming pool crystal clear and clean both on the surface and in the bottom Its role is to filter the water in your swimming pool so that the leaves, insects and dirt which settle on pond water surface does not settle to the bottom of the pool Ensures that the filter pump works more efficiently Product Keep your pool water clean and clear with (Type II) filter cartridges. This filter cartridge is 10.6 cm x 13.6 cm in diameter and is designed for 2006 L and 3028 L per hour filtration pumps. They are easy to clean and effectively retain debris during filtration start-up. Bestway recommends replacing them every 2 weeks for best results. Package Contents 1 Cartridge