2-in-1 Automatic Safety Exhaust Coupler 1/2" Body, 1/2" MPTAutomatically connects under zero pressureSafely vents and disconnects under zero pressure, no hose whipAttractive anodized && plated finishDesigned to be installed onto a drop or workbench5 in 1 Coupler Sell SheetNote:Not recommended for use directly connected to high-impact tools.Product InformationDescription2-in-1 Automatic Safety Exhaust Coupler 1/2" Body, 1/2" MPTBody Size1/2"InterchangeUniversalMaterialChrome Plated Steel && AluminumPackagingStandardUPC ID029292109048