【Features】

-Sponge filters provide both mechanical and biological filtration for the fish tank.

-Simply install an air line into the unit and it mostly fit to external or top filtration system for pre-filtration purposes.

-Aerobic bacteria colonizes on the sponge, providing a bacterial substance to facilitate the nitrogen cycle.

-Multilayer sponge is easy to clean, providing larger surface area for filtration with no clogging.

【Specifications】

-Item number: XY-2820

-Material: Plastic + Sponge

-Size: about 13.5cm x 9cm x 5cm

-Color: Black

-Qty: 10 pcs