This is a casting ONLY, identified as Part #4 in our Service Manual for our CP-20-BB SERIES PUMPS. For a complete PUMP, voltage must be determined (example: CP-20-BB 12V or CP-20-BB 24V). Call direct for assistance or check with your local distributor if you are not certain, as THERE IS A 20% RESTOCKING CHARGE for returned parts or products. CP-20-BB CP-20-BB$103.00 If you require any further assistance, please call your local distributor or GROCO for service.