Water Source 1-1/4" MPT Air Volume Control for Deep-Well Submersible Pump. It is used with submersible pumps to maintain the proper relationship between the volume of air and water in a galvanized pressure tank. It is not used with precharged tanks. It features a plastic body, a polypropylene float, a 1/4" pressure gauge port, and a 1-1/4" MPT connection. The non-adjustable air release valve ensures accurate air volume control.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov