LTWHOME Fish Pond Foam Filter Sponge Set 430mm X 280mm 3 Grade Media,17-Inch X 11-Inch Media(Pack of 3 Sets)

Package Include: 3 x coarse foam(black), 3 x medium foam(white), 3 x fine foam(blue). Foam size: 17 inch x 11 inch. Simply cut holes in the desired position with scissors to fit most filter boxes. Egg-crate profile on one side to effectively catch waste from the water. Cleans pond water of suspended debris, keeping efficient water flow with less clogging for long lasting filtration. Provides a breeding ground for beneficial bacteria, aiding biological filtration.