... : 1m*2m*38mm 3.Material:resin 4.Function:collecting water High quality Aquarium Filter Mat for koi Application: Car painting room, factory ... and water; water disposal factory,tap water factory, cooling tower, swiming pool, fish pomd, collecting fish eggs,ect.Features:1) Biological ... 6)HS code :39269090 Our Workshop Our Warehouse Our Certificate High quality Aquarium Filter Mat for koi