SCHRADER STYLE QUICK CONNECT - FEMALE COUPLER - Hose Barb - NITROGEN - Black - 1/4" I.D. Hose Barb - SCF-12-17***Please read detailed description on this item*** 25% Restocking FeeMEDICAL AIR FITTINGS ARE THE STANDARD USED IN MOST OPERATING ROOMS TO DRIVE PNEUMATIC TOOLS...EVEN THOUGH NITROGEN IS THE GAS DRIVING THE INSTRUMENT.Please reference detailed images to determine proper fitting. Sometimes you will find N2 or AIR stamped on fittings.The typical scenario is:A Nitrogen panel on the wall...