Designed for direct mounting on the Hypro D403 and D303 Diaphragm Pumps, this Hypro GR40 Pressure Regulator (9910-GR40) is capable of handling flow rates up to 11 GPM and pressures up to 580 PSI. This adjustable high pressure relief valve / control unit comes with a complete bypass lever, 2 1/2" gauge, two 1/2" hose barb outlets with individual shutoffs, and a 5/8" hose barb bypass.
You can purchase the Hypro GR40 Control Unit Repair Kit 9910-KIT2488 (sold separately) to keep it on hand just in case your Hypro GR40 Pressure Regulator experiences performance problems in the future.