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The amount of hose the wrapper will secure depends upon the size
Pull female coupling forward approximately 2 feet ahead of male
Combining both a pitot gauge and hydrant diffuser into one tool makes hydrant tasks clean
NSN: 4210-01-170-0941
it should be the length of your pre-connect
Fire Hydrant Backflow Preventer Couplings_Aluminum The amount of hose theDouble check valves back flow prevention assembly is used to protect water supplies from contamination or pollution due to back flow. Three top mounted test cocks ensure easy access during repair and maintenance. Consists of two spring loaded poppet type check valves and a mechanically independent, hydraulically dependent pressure differential relief valve. Designed to give maximum protection against back flow caused by back pressure or back siphonage
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