NOTICE: These products as with all 1011 1019 1052 and 1053 ASSE listed devices are not to be subjected to continuous water pressure. Replacement is recommended every 3-5 years. After use turn device to open drain vents or faucet may freeze and burst.

34H - For Non-Freezing Conditions Only
50H - Freezing and Non-Freezing Conditions.

The Woodford NIDEL® Model 34H anti-siphon vacuum breaker is designed to protect hose connections from contamination where temperatures do not get below freezing. Uses include laundry tubs utility sinks boiler room hose bibbs and outside hose bibbs in non-freezing areas.

The Woodford Model 50 hose connection backflow preventer is designed to protect hose connections from backflow contamination in freezing and non-freezing conditions. The Model 50 double check backflow preventer automatically drains when the hose is removed and unlike single-check vacuum breakers can be field tested for reliability. Uses include outside hose bibbs wash racks dairy barns and swimming pool areas.

Available Finishes:
34H - Chrome Plated and Brass
50H - Brass