9D-M3, 1/2" Dual Check Backflow Preventer Valve w/ Atmospheric Vent, FNPT Union x FNPT Union
1/2" 9D-M3 Dual Check Valve w/ Intermediate Atmospheric Vent
- Size: 1/2"
- Connections: FNPT Union x FNPT Union
- Operating Temperature Range: 33 - 250°F
- Max. Working Pressure: 175 psi
- Minimum Pressure: 25 psi