uxcell Brass 1/2" NPT Thread 10mm Air Gas Hose Barb Fitting Coupler Adapter Product Name : Barb Fitting;Fit Tube Inner Dia : 10mm/ 13/32" Thread Size : 1/2" NPT;Thread Diameter : 19mm Overall Size : 23 x 35mm/ 0.9" x 1.38" (D*L);Color : Gold Tone Material : Solid Brass;Weight : 50g Package Content : 1 x Barb Fittings