Eheim Ecco Canister Filter model 2231 rated to 35 U.S. Gallons. 127 GPH pump output. 0.42 U.S. Gallon filter volume. Pump uses 9 watts. Comes complete with filter media and valves. Quick-release pivot valves for hassle-free hose positioning and removal. Quick-clean baskets for easy maintenance. Adjustable flow rate. Has multifunction handle with self-priming feature. 2 year guarantee.