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ZM415SH-2NH
Certified NSF standard 61/ANSI 8
This 2 IN dual check valve backflow preventer is designed to prevent the reverse flow of polluted water from residential fire sprinkler systems from entering into the potable water supply
A self-locking polyethylene dome helps protect the drain from debris intrusion
making this drain well suited for correctional applications where safety and reliability are critical
Watts LF009-DNRS-FS 3 - Part of the LF009 Series geogrid ZM415SH-2NHThis 3 inch lead free reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. Ideal for protection in continuous pressure piping applications and at cross connections identified as health hazards. This assembly consists of a cast iron body, domestic non rising stem resilient seated gate valves, top mounted test cocks, two
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