Comes as shown, contact with questions. Compatibility – 1-720A pressure vacuum breaker fits most residential and commercial irrigation systems, garden sprinklers, hose bibs, and outdoor water lines.MAX 400PSI Backflow & Anti-Siphon Protection – Prevents contaminated water, from flowing back into the clean water supply; meets plumbing code requirements.Install valve at least 12 inches above the highest piping or water putlet downstream ofthe Model 720A Pressure Vacuum Breaker 2173-2
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