uxcell PT 3/8" Thread Acetylene Gas Dry Flashback Arrestor Brass Check Valve Product Name : Dry Flashback Arrestor;Main Color : Gold Tone Mateiral : Brass;Medium : Acetylene Gas Working Pressure : &lt;0.15 Mpa;Flow Capacity : more than 4m3/h Thread Size : PT 3/8" (16mm);Overall Size : 70 x 21mm/ 2.7" x 0.83" (L*D) Net Weight : 110g;Package : 1 x Dry Flashback Arrestor