A look at what is currently available on eBay
 Snap-Tite S71-3C4/3N4 Coupler & Nipple Set - Stainless Steel Quick valve US $300.00 
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 Ashcroft Duralife 3/16 400pSI Gauge w Milton Coupler Valve set up in case US $134.99
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Items recently purchased from this site
Snap-Tite S71-3C4/3N4 Coupler & Nipple Set - Stainless Steel Quick valve, Ashcroft Duralife 3/16 400pSI Gauge w Milton Coupler Valve set up in case,