Aquatop 4-Stage Canister Filter W/Uv SterilizerProduct Description Aquatop 4 Stage Canister Filter W Uv Sterilizer Ingredients Key Features Four stage filtration system. Filters up to 370 gallons an hour. 9 watt uv sterilizer. Contains three flexible media trays that allow you to add the media of your choice. Suitable for tanks 75 to 125 gallons. Includes three fine filter pads (white) and a single coarse filter sponge (blue). Replacement fine filer pads bci# 003459 and course filter sponge bci#