Brass Water Pressure Regulator with Gauge Helps protect RV plumbing and hoses from damage caused by high-pressure city water. High flow regulator allows 15% to 20% more water flow. Easy to read dial shows psi and kPa. Attaches easily with convenient 3/4" garden hose threads. Pressure is factory pre-set at 40-50 PSI (green zone). Yellow zone indicates less than 40 PSI and the red zone indicates pressures above 50 PSI. Patent pending

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov