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The Zurn 34-420XL is a pressure vacuum breaker designed to prevent back-siphonage in potable water systems. Its integral anti-freeze relief valve protects against potential freeze-related damage. This assembly is suitable for residential irrigation and can be used in various potable water applications.
Reliable freeze protection and backflow prevention in a lead-free assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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