Pulsafeeders Chem-Tech Prime Performance Series pumps have a specially designed degassing valve system for applications using off-gassing chemicals like sodium hypochlorite. Built upon motorized-diaphragm technology, the Pulsafeeders Prime Performance Series delivers dependable performance, extended longevity and consistent metering over long periods of time in a compact form. PP100 Models - Perfect for off-gassing applications where economical, consistent performance is required. Capable of a wide range of flows, from less than 15 gpd (2.34 lph) up to 30 gpd (4.72 lph) and pressures up to 100 psi (7 bar). PP150 Models - Built upon the same solid platform as the 100 Models, these units are capable of higher flow rates. With a range offering up to 100 gpd (15.76 lph), the Series 150 can meet the demands of larger applications. Maximum pressure is 60 psi (4.2 bar).