Save Costs - Regularly replacing the paper filter cartridge is part of daily pool maintenance, this leads to increased costs and waste. Our reusable and washable foam filters are an ideal replacement for disposable filter paper! You don't need to replace the filter sponges frequently. Good Filtering Effect - Our foam filter cartridge has a high-density mesh structure, which can filter many impurities in the swimming pool and effectively remove leaves, grass, hair, slag, pines, insects and other floating debris. High Quality - Our swimming pool filter foam is made of high-quality sponge, the thickness is sufficient, the density is moderate, soft, not easy to deform, environmentally friendly, washable, reusable, durable, has a long service life, perfect for S1 type filters. Reusable & Washable - Each spa foam filter can be used for about 2 months. You can clean the filter sponges once a week to keep the water clean and reduce bacteria in the pool. Our filter element is easy to clean and