Zurn Wilkins Model 720A 1/2\" Pressure Vacuum Breaker Valve Backflow Preventer For Sale
![Zurn Wilkins Model 720A 1/2\](img-large/g/x4MAAOSwdxJas-cR/s-l1600/Zurn-Wilkins-Model-720A-1-2-Pressure-Vacuum-Breake.jpg "Zurn Wilkins Model 720A 1/2\")
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Zurn Wilkins Model 720A 1/2\" Pressure Vacuum Breaker Valve Backflow Preventer:
$39.99
Wilkins 1/2 in. Brass Pressure Vacuum Breaker*Not sure if it\'s new or used. In EXCELLENT shape but a couple drops of water came out. Threads are unused.Designed for installation on irrigation water lines to protect against back siphon-age of contaminated water into the potable water supply. Assembly shall provide protection where a potential health hazard exists. It is constructed of brass. • ASSE listed 1020
• IAPMO listed
• CSA certified
• Approved by the foundation for cross-connection control and hydraulic research at the university of Southern California
• Main valve body: cast bronze ASTM B584
• Fasteners stainless steel, 300 series
• End connections threaded ANSI B1.20.1
• Elastomers Silicone (FDA approved) Buna Nitrile (FDA approved)
• Polymers Polypropylene (FDA approved) Delrin (FDA approved)
• Springs stainless steel, 300 seriesH. N-3-4
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