Black biochemical cotton 50×30×4cm

Product: Black biochemical cotton (coarse holes)
Size: 50cm x 30cm x 4cm
The Biochemical filter has the best effect on decomposing the excrement and the forage leftover. multi-porous feature avoid blockages and provide the largest adhesion area for bacteria. This filter is able to cultivate the nitrifying bacteria for biological filtration. This material is very durable and can be cut to different sizes and can be reuse after washing.