G Series pumps from EnviroGear Pumps have two moving parts and operate equally in either direction while providing a positive, non-pulsating flow. Its design provides multiple inlet and outlet positioning, a single end-clearance adjustment and easy drive-end access for ease of maintenance and adjustability. They are available in both cast iron and stainless steel and are interchangeable with most internal gear pumps. 909/422-1731; www.envirogearpump.com.