Set of 4 Intex Type S1 Foam Pool Filters - Foam Filters for Spas and Pools - Reusable and Washable - Type S1 Filter Sponge (4 pieces)

High-quality filter material: Made of high-quality sponge, the foam filter has good flexibility and high elasticity. Dimensions: 10.8 x 7.3 cm. Center hole: approximately 4 cm. Designed for Intex S1 filters, they can be cleaned and reused multiple times. Good filter filtration effect: Our foam filter element has a high-density mesh structure, which can filter a large amount of impurities in the pool and effectively remove leaves, grass, hair, sludge, pine needles, insects, and other floating debris. Easy maintenance replacement: Replacing filters is part of daily pool maintenance, and regular filter replacement can be quite expensive. Our sponge filters are washable, making them easier to clean and maintain than traditional paper filters. Easy to use: Simply remove the filter when it touches the electrode rod. Over-chlorination will cause the foam to burst quickly. Normal chlorine and bromine disinfection levels are adequate, and these foams have been tested at normal levels. Application: Our washable foam filter is suitable for the S1 model and most pool filters on the market, keeping your pool, aquarium, and spa clean. We recommend changing it every two weeks for optimal filtration and to maintain a clean pool.