When you need a durable diaphragm pump in your agricultural, industrial or commercial sprayer systems, install this Delavan 5850-201E PowerFLO Electric Diaphragm Pump. This version features automatic demand, as well as a pressure rating of 60 PSI and a maximum flow rate of 5 GPM. This component also includes Viton valves and a Santoprene diaphragm, which boosts its ability to resist corrosion.