Sherwood Global Brass Valve New CGA 346 3000 PSI 3/4 NGT For Cylinder Tank (GV34661-28) CGA 346; 3/4 NGT; CG1 PRD; Material: Brass; GV O-Ring Style Cylinder Valves Tapered Thread with 3000 PSI Pressure Relief Device Weight: 2 LB; (We also carry all sherwood valves and cylinder accessories)