The Rio 20HF HyperFlow Powerhead flow rate is 1290 gph.Max head: 10.8 feetConnections: 13/16" outputDimensions: 5.4" x 2.7" x 3.7"Titanium impeller shaft with ceramic bearingsFor freshwater and saltwater useComplete with mounting bracket and suction cups, strainer with sponge pre-filter and inlet and outlet adaptersMust be fully submersed