Dixon STMP6B Brass Hydraulic Quick-Connect Fitting, Plug, 3/4" Male Coupler x 3/4"-14 NPT Straight through quick connect hydraulic coupler for connecting directly to a hose with a male NPT end to connect with a female NPT threaded connection Straight through quick connect male plug with a male NPT threaded end Valveless construction provides maximum flow with minimum pressure drop Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Used for hydraulic applications in industrial operations