Water Master clear pumps offer high head pressure and create dramatic waterfalls and water features. They feature a wear-resistant ceramic shaft, heavy-duty seals bearings and three lip seals for increased life span and durability. Housing and components are noncorrosive. Oil-less operation for fish and plant safety. CSA approved for USA and Canada. 1-year limited warranty. U.S.A. GPH: 3,960, Material: Noncorrosive