General description The 10Pcs Foam Filter Sponge for Type A is designed for use in swimming pools and aquariums. Made from environmentally friendly materials, these sponges do not pollute water or the environment, ensuring your pool or spa remains clean and clear day after day. Unlike traditional paper filters, these washable and reusable foam filters help reduce maintenance costs while providing effective filtration. Technical specifications Model Number: for Type A Type: Swimming pool foam filter sponge Color: Blue Material: Sponge Size: 20 x 10 cm Package Contents: 10 x Pool Foam Filters Measurement allowed error: +/- 1-3 cm Usage These foam filters can be washed and reused multiple times, lasting approximately 2 months with regular use. It is recommended to change traditional paper filters weekly, while these foam filters can simply be cleaned and reinserted.