Press Adapters Application Natural Gas Non-Potable Water Propane Fitting Side A Connection Type Press-Fit Fitting Side B Connection Type FNPT Fitting Side A Copper Tube Size 1/2 in Fitting Side B Copper Tube Size 1/2 in Fitting Material Copper Fitting Side B Pipe Size 1/2 in O-Ring Material HNBR Specific Fitting Shape Straight Adapter Fitting Side A Tube Outer Diameter 1/2 in Fitting Side B Tube Outer Diameter 1/2 in Overall Length 1 15/32 in Maximum Operating Pressure 200 psi