Cut To Fit filter media Bio Sponge. Can be cut to fit your filters
The activated carbon filter pad replaces loose carbon in your aquarium.
Removes odor, colors, organic pollutants to keep water crystal clear
Suitable for seawater tank, fresh water tank, water tank, fish pond, fish tank bottom tank or drip filter box.
Size: 36 x 12 x 0.4 inch,1 Pcs, Pad density is 30ppi