Pool & Spa Maintenance Kits features: Are you looking for professional but affordable alternative filter sponge for swimming pools? Are you looking for sturdy, reliable tool that can do multiple tasks at once? If it is, no longer look for it Our professional swimming pool filter sponge must meet your needs. This is one of your best choices. Features Color: Blue Material: Sponge Size:10.80X10.80X7.00cm/4.24X4.24X2.75inch It is made of sponge material, excellent and useful and has long service life Can be widely used to filter hair, dust, sediment, sand, etc., so that you have good water quality This professional and practical filter sponge is designed to support the filter and make it work better The filter sponge is simple to use, just take the filter out of the pump and rinse it, water filtration, anti-clogging This professional and practical filter sponge can more thoroughly filter impurities in the water, excellent performance.