Feature●Comet 1204.0560.00 Pressure Regulator●Fits Comet MP20 and MP30 Diaphragm Pumps●Max. Flow: 10 GPM●Max. Pressure: 435 PSI●Two 3/8" ball valve outlets and 3/4" hose barb bypassDescription Comet 1204.0560.00 Pressure Regulator for the MP20 and MP30 Diaphragm Pumps. Max. Flow: 10 GPM. Max. Pressure: 435 PSI. Ports: Two 3/8" ball valve outlets and 3/4" hose barb bypass.