uxcell Green Cap Gold Tone Metal R134 Refrigerant Can Tap Valve Opener Product Name : Can Tap Valve;Fit for : R134 Refrigerant Color : Green,Blue, Gold Tone;Material : Metal, Plastic Side Thread Diameter : 1/4" NPT(11mm);Bottom Thread Diameter : Inner: 1/4" NPT (12.4mm),Outside: 3/8" PT (17.8mm) Total Size : 75 x 34 x 40mm/ 3" x 1.3" x 1.6" (L*W*H);Weight : 75g Package : 1 x Can Tap Valve