Description: [Reusable, Washable Filter]: Replacing paper filter cartridges is part of your daily pool maintenance, and regular cartridge replacements can be costly. These washable and reusable foam filters will reduce your costs. [Long Service Life]: The initial cost of this cartridge is slightly higher than a paper cartridge, but it lasts much longer than a cartridge. [Durable]: This foam filter has a longer service life than a cardboard filter and can be washed and reused multiple times. [Reusable and Washable]: It is recommended to replace one cardboard filter once a week, while these foam filters can be easily washed and replaced. [Keep Water Clean]: It is a good stain remover for swimming pools. You should see that the foam filter can last about 2 months.