Ocean Runner 3500 pump, Aqua Medic. The Ocean Runner (OR) 3500 is a powerful universal pump to be used as a circulation or current pump, both in salt and fresh water aquaria. The OR3500 is supplied with a rugged pump housing, an energy saving motor, a polished ceramic shaft, and ceramic bearings. All these qualities ensure a quiet and maintenance free performance for many years. Can be used for both submerged and in-line installations. Pump uses 65 watts. Pumps 900 gph at 0 feet. Connections: 1 inch male barb inlet, 3/4 inch male barb outlet. Dimensions: 7-1/4 x 6 x 5-1/2 (LxWxH)