Pool Filter Cartridges, 8 Pack Foam Pool Filter, Pool Filter Sponge for Intex Type S1, Reusable Foam Filter Cartridge, 108*40*73MM MORE DURABLE THAN TRADITIONAL FILTER CARTRIDGES This is a great replacement for cardboard pool filters. Pool filter cartridges good value for money to look over time if the spa let's say the motor doesn't clog. Just had to cut these foam filters to size, no problem with a good cutter, and replace the stock paper pool filters. HIGH QUALITY Foam Pool Filter approx 108 x 73mm (L x W) for Intex Type S1. The foam pool filters are made of high quality sponge. Because these pool filter cartridges are washable, they are economical, this foam filter lasts longer than cartridges and can be cleaned and reused several times. 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 hot tub to maintain it, make sure that every day do not 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 approximately 2 months. twist the filter sponge and rub it without damaging it, good elasticity, strong traction, high filtration speed, our foam filter cartridge has a high density mesh that can filter out many impurities in the pool, it collects all impurities, mosquitoes, threads, grass, hair and floating insects effectively.