The new and improved Rio Plus Aqua Pumps and Powerheads provide versatile water pump system designed with high efficiency and reliability at lower cost. Desinged with next generation magnetic-rotor technology, the Rio Plus Aqua Pumps and Powerheads offer the best high-performance solution in the aquarium industry. The largest and most powerful models provide excellent performance within wet or dry filters and in venturi protein skimmers when high pressure and flow rates are needed. Reliable and quiet, Rio Plus Aqua Pumps and Powerheads do not use oil to operate so they cannot contaminate the aquatic environment. A full range of Rio Plus Aqua Pumps and Powerheads, designed to work in a variety of aquatic environments, gives hobbyists superior selection with competitive price. Taam Rio Plus 2500 pump runs on 55 watts and pumps 748 gph. Will connect to a 3/4" ID hose or to any undergravel filter of ATI sponge filter. Size 5.1" x 2.7" x 3.7"