Press Couplings Application Natural Gas Non-Potable Water Propane Fitting Side A Connection Type Press-Fit Fitting Side B Connection Type Press-Fit Fitting Side A Copper Tube Size 1 1/4 in Fitting Side B Copper Tube Size 3/4 in Fitting Material Copper O-Ring Material HNBR Specific Fitting Shape Straight Reducing Connector Fitting Side A Tube Outer Diameter 1 1/4 in Fitting Side B Tube Outer Diameter 3/4 in Overall Length 2 7/16 in Maximum Operating Pressure 200 psi