Watts 0009309 Pressure Reducing Valve, FNPT x FNPT, Copper Silicon Alloy, 25 psi to 75 psi, NPT x NPT G7719400 Chemical Formula CO2 Chemical Formula CO2 Hand Factory Left Residential Use For Use With Mfr Model Number 25AUB Z3 Standards BAA Compliant Inlet Connection Gender Female Body Material Copper Silicon Alloy Valve Type Pressure Reducing Operating Pressure Maximum 300 psi Inlet Connection Type NPT NSF Certifications for Food and Drinking Water NSF 61G Seat Material Stainless Steel Disc Material EPDM Outlet Connection Type NPT Pilot Adjustment Maximum 75 psi Pilot Adjustment Minimum 25 psi Includes Strainer Strainer Included Fluid Temperature Maximum 180 Degrees F Factory Set Pressure 50 psi Outlet Connection Gender Female For Media Water Country of Origin United States