Replacement filter element: 4 PU filter sponges in white, which can replace the S1 paper cartridge; sufficient quantity for your use and replacement.
Size: the length of the sponge foam cartridge is 7.3 cm/2.87 inches, the diameter is 10.8 cm/4.25 inches, and the inner diameter is 4 cm/1.57 inches; small size, easy to carry, store and replace.
Reusable: this filter foam sponge is made of high-quality sponge, which can be cleaned and reused many times, so as to reduce your maintenance cost.
Easy to use: swimming pool filter foam cartridge can be put back to use after simple cleaning; 1 piece of foam filter can be used for about two months; they keep the water clean and easier to clean and maintain.
Product features: the swimming pool filter foam cartridge has good flexibility, high resilience, can be bent repeatedly without deformation and damage.

Colour:White
Material:sponge

Package Contents:
4 * Filter Sponge