Webtrol WS Series submersible water well pumps are made entirely of stainless steel for a trouble-free lifespan. For residential, commercial, and municipal jobs. All 304 stainless steel components. Stamped and welded discharge head. Top diffuser includes jam-free stainless steel check valve. Buna-N rubber bearings in each diffuser stage. Enclosed strainer. Available in 6- to 10-inch; 1.5 to 250 horsepower, 60 Hz; capacities to 1,400 gpm; heads to 1,800 feet. webtrol.com