10Pcs Double Layer Biochemical Cotton Filter Foam Pond Aquarium Fish Tank Sponge

Specifications Material PolyurethaneColor RandomSize L X W X H 120X30X1cm 47 24X11 81X0 39 appr FeaturesExcellent water permeability Lightweightsoftness design Can be used again after cleaning Put directly into the combination filter Can be cut any sizes as your needed A good item ensures your filtering effect Cultivate the nitrifying bacteria for biological filtration Thickened double layer makes it effective to avoid residue Adsorption of ammonia nitrous acid nitrate phosphate energy medium and nitrification Package included 10 Pcs Filter Sponge