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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
or by hand for band and spot treatments
Includes Protective Hard Case
Fun colors to choose from
Guaranteed Analysis: 3-4-5
Highly flexible product can be used year round in any weather condition to stop & seal leaks
Watts® 1/2-B911S-M3 Combination Fill Valve and Backflow Preventer, 1/2", Bronze HALLOWEEN or by hand for bandUse in commercial and residential hydronic heating systems to provide make up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze Watts Model 9D backflow preventer and a bronze Watts Model 1156F feed water pressure regulator in one pre assembled unit. High capacity fill valve that provides quick system filling and purging. It is designed for use in the boiler feed lines of hydronic
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