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 2 in Fitting Side B Copper Tube Size 2 in Fitting Material Copper O-Ring Material HNBR Specific Fitting Shape Straight Connector Fitting Side A Tube Outer Diameter 2 in Fitting Side B Tube Outer Diameter 2 in Overall Length 3 5/8 in Includes Center Stop Dimple Center Stop