Hydor Professional 250 External Canister Filter, 40-75 gal, 225 GPH, Plus 5" Easy Catch Mesh Fish Net Hydor Professional 250 External Canister Filter, 40-75 gal, 225 GPH Plus 5" Easy Catch Mesh Fish Net No water by-pass; Water is forced through the media baskets, thanks to it's flush design Includes ball-valve connections for simple flow adjustments and easy flow shut off and removal for filter maintenance No noise or vibration, Filter circulation: 200 GPH; Pump output: 225 GPH; Max head: 4.92 ft. Power consumption: 17W; Filter volume: 5.3 qtr.