Type A Pool Filter: Type A replacement filter element to keep your hot tub or swimming pool clean, washable sponge, filter is made of high quality polyester fiber Dimensions : diameter: 20.0 x 10.0cm (length x width) / 7.87in x 3.94in; suitable for all pool models that require type A filters, perfect compatibility Premium quality material: filters dirt in the pool, cleans the pool water source and ensures a flow of water clean and hygienic water. A reusable foam filter can cut your costs Ultra Clear Filtration: Size A pool filter can be clean and fresh. Easy to clean, it is recommended to replace it every week. The swimming pool is clean and hygienic, it provides a comfortable and safe swimming pool environment for your family and friends. every pool, keeping your pool water in good, clean and hygienic condition. Continuous water pool filter. Product Specifications: Type: Filter Sponge Material: Sponge . Dimensions (H x D x H): 20 x 10 x 4 cm. Center drilled hole: approx. 0.40 mm. Net weight : 20 g. Packaging: 6 filter sponges.