uxcell Red Plastic Housing 1/4" Male Thread Air Compressor Safety Relief Valve Product Name : Pressure Relief Valve;Material : Metal Color : Gold Tone, Red;Thread Size : 1/4" Valve Total Size : 4 x 1.7cm / 1.6" x 0.67" (L*Max.D) Weight : 26g Package Content : 1 x Pressure Relief Valve