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Install between standard regulator hose and 2nd stage
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Slide machined Delrin collar to shut off gas flow
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Commonly used with deco rigs, stage bottles & drysuit inflation
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Prevent critical gas loss
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9/16”-18 UNF male inlet to 9/16”-18 UNF female outlet threads
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Low pressure use only - below 200 psi
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WARNING: When shutting off gas supply to the 2nd stage, there must be some other type of over-pressure relief device present