Yellow Biochemical Cotton Filter Foam Aquarium Fish Tank Pond Sponge 50X50X2cm

Specification Material: Polyurethane Color: Yellow Aperture: Big Hole, Middle Hole, Small Hole Size: (L)X(W)X(H)50X50X2cm/19.69''X19.69''X0.79''(appr.) Features a.Excellent water permeability. b.Lightweight & softness design. c.Can be used again after cleaning. d.Can be cut any sizes as your needed. e.A good item ensures your filtering effect. f.Dense shape makes it effective to avoid residue. g.Suitable for using in freshwater and marine water. h.Cultivate the nitrifying bacteria for biological filtration. Package included: 1 Pcs Filter Biochemical Cotton