McMaster 9194N126 Chemical Resistant Viton Fluoroelastomer O Ring, High Pressure, 3 32 Width, Dash No. 111, ID 7 16" × OD 5 8", Pack of 5 G7454526 Pressure 175 psi Connection NPT Pressure 175 psi Connection NPT Includes Flow Meter No Flow Meter Maximum Pressure Operating 175 psi Backflow Preventer Type Reduced Pressure Assembly (RP) Includes Strainer Strainer Included Connection Type Side 1 NPT Number of Test Ports 4 Hazard Protection Level High Health Hazard Operating Temperature Maximum 180 Degrees F Operating Temperature Minimum 33 Degrees F For Media Water Handle Type Tee Connection Type Side 2 NPT Connection Gender Side 2 Female Connection Gender Side 1 Female Shut Off Valve Included Ball Valve Manufacturer Warranty 1 yr Includes Freeze Sensor No Freeze Sensor Includes Flood Protection No Flood Protection Valve Series LF009 Pressure 370 psi @ 73 Degrees F Green Certification or Other Recognition NSF(R) Certified (Sustainability or Environmental Standard) Gravity Flow No Wall Thickness 0 103" Dash Number 111 ID (Decimal) 0 NACE TM0187