Uniweld RUH8211-2 Medium/Heavy Duty Single Stage Acetylene Regulator with a CGA520 Inlet 2" Tri-layered reinforced neoprene diaphragm. CGA520 Inlet, Maximum Inlet:3000 PSIG Large Brass T-handle for Smooth, Acccurate Adjustments. Delivery pressure: 2-15 PSIG