Eheim Classic Canister Filter model 2250 rated to 265 U.S. Gallons. 264 GPH pump output. 3.16 U.S. Gallon filter volume. Pump uses 28 watts. Filters come WITHOUT filter media. Pump output to suit size, high operating reliability, protected against overheating. O-ring fixed on the pump head for convenient handling. Optimun choice of materials: ceramic, carbon, and high-grade plastics guarantee many years of quiet, continuous trouble-free operation. Safe for fresh or salt water. 2 year guarantee.