Shurflo 2088-594-154 line pressure boost pump with 1/2 Quick Connect, 3GPM, 115VAC Shurflo pump model # 2088-594-154 demand delivery pump, boost line pressure come with 1/2" quick connect fittings for 1/2" OD tubing or pipes Max flow rate: 3.3GPM with built-in pressure switch, preset at 45 psi cut off, adjustable non-cord, 3 wire, 115VAC 60Hz, 104 Watts, 0.9 Amp max Santoprene valves and diaphragm, NSF certified product