Eheim Submersible Internal Filter model 2010 rated to 42 U.S. gallons. 132 GPH pump output. 0.087 U.S. Gallon filter volume. Pump uses 5.5 watts. Easy handling thanks to PICK-UP SYSTEM: to clean the filter, simply remove the filter canister; the motor and cable remain fixed in the aquarium. Wide angle, multi-directional output nozzle 180 degree rotatable from left to right for optimum water circulation. Has integrated air diffuser for regulating oxygen enrichment. When oxygen is required, simply push in the output nozzle and a continuous burst of bubbles is released into the aquarium. Safe for fresh or salt water. 2 year guarantee.