420 3/4 inch Pressure Vacuum Breaker Assembly Review
420 3/4 inch Pressure Vacuum Breaker Assembly Feature
- ASSE listed 1020, IAPMO listed, CSA certified
- Full port ball valves for shut-off and test cocks, IPS threaded connection
- All bronze body construction
- Integral relief valve reduces the risk of valve damage under freezing conditions
- Drop in replaceable seat
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