1.Bio packing media ,Color;. white& balck ,or as u need 2.Material: PP.PE 3.Available size:10*8mm, 11*7mm,25*8 ZY MBBR media also called as K1(kaldness media), K3 media, It is one of the bio film carrier filter media.It's good for fish Poond filter.The mainly material is PE .We mainly exported to United States, United Kingdom, And Australia. ZY Mbbr Packings material: PE, PP, Aslo can produce as ...