The Hypro 9910-RM40 control unit, for mounting on pump model 9910-D503, is capable of handling flow rates up to 24 gpm (90.8 lpm) and pressures up to 580 psi (40 bar). It includes a pressure gauge, one adjustable high pressure relief valve, one complete bypass knob, two 1/2" HB outlets with individual shut-offs, and one 1" HB bypass.