Swimming Pool Filter Cartridges, 8 Pack Foam Pool Filters, Swimming Pool Filter Sponge for Intex Type S1, Reusable Foam Filter Cartridge,108*40*73MM MORE DURABLE THAN TRADITIONAL FILTER CARTRIDGESThis is a great replacement for cardboard pool filters. Pool filter cartridges good value for money to see over time if the spa let's say the motor does not clog up. Just had to cut these foam filters to the right size, no problem with a good cutter, and replace the usual paper pool filters. HIGH QUALITY Foam Pool Filters approx 108 x 73 mm (L x W) for Intex Type S1. The foam pool filters are made of high quality sponge. As these pool filter cartridges are washable they are economical, this foam filter lasts longer than cartridges and can be cleaned and reused multiple times. swimming pools.REUSABLE The Pool Filter Sponge The big difference is that the Pool Filter Sponge is much easier to clean.it is still necessary to follow the spa to maintain it, make sure every day not to wait for the foam filter to turn yellow and that it remains in good general condition. Each Foam Pool Filter for Spa can be used for about 2 months. twist the Filter Sponge and rub it without damaging it, Good elasticity, strong tensile force, high filtration rate, Our Foam Filter Cartridge has a high-density mesh structure which can filter out a lot of impurities in the pool ,it collects all impurities, mosquitoes, strands, grass, hair and floating insects effectively.