CRI Submersible Pumps are made up of corrosion resistance stainless steel with Built in check in valve. They are Available at various inches and are built with thermoplastic Impellers, diffusers and In build check valve. The optimal design of Impellers and Diffusers enable the best possible hydraulic Efficiency. These pumps are of Multi stage Centrifugal type , which can be firmly coupled to a submersible electric motor, which operates submerged beneath the surface of the water. Built in check valve prevents backflow and reduces the risks of water hammer. All mounting dimensions of pumps are in accordance with NEMA standards.