Throwflame CO2 Pressure Regulator Stainless Steel. This adjustment optimizes flamethrower performance including range flame width fuel use rate CO2 use rate and recoil with operating pressures ranging from 400700 psi for the X15 and 300400 psi for the XL18 depending on fuel mix and viscosity. Specifications for Throwflame CO2 Pressure Regulator: Manufacturer: Throwflame Fabric/Material: Stainless Steel Weight: 5 lb Dimensions: 8 x 6 x 8 in Features of Throwflame CO2 Pressure Regulator Designed for X15 and XL18 flamethrowers. Attaches to the 320 CGA valve Optimizes flamethrower performance Operating pressures: 01000 psi Package Contents: Throwflame CO2 Pressure Regulator Nylon Washer Throwflame TF-X23822: CO2 Pressure Regulator Stainless Steel