Round sponge No. 4, coarse, 8 x 8 x 16 cm, blue

Round sponge No. 4, large -porous - designed for the aquarium filter, is an important part of the filtering system.

It acts as a mechanical filter, delaying large particles of dirt and food remnants, preventing them from getting into more complex filtration materials. The large -porous structure allows you to effectively delay large particles of dirt without getting too fast. It also has good bandwidth for water, which allows maintaining normal circulation in the aquarium.

It is necessary to correctly install it in the cassette or compartment of the filter. It is important to periodically check the condition of the sponge and clean it.

the diameter of the hole is 13 mm.