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This 1 inch dual check valve repair kit provides all the parts necessary to replace the major components of the applicable dual check valve assembly
Z400M-2NH-SB
The temperature range is 0 to 120 degrees F (-18 to 49 degrees C)
Includes coupler for 1/4 - 1/2 inch valves
ZC100F-8NH
Watts 800M4QT-SH 2 - Part of the 800M4QT Series ZC100F-6NH This 1 inch dual checkThis 2 inch anti siphon pressure vacuum breaker backflow preventer helps prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O ring seal, a lightweight plastic disc float, lever handle shutoff, and test cocks for winterization draining. It is
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