Coupling Application Gas and Fuel Oil Fitting Side A Connection Type Press-Fit Fitting Side B Connection Type Press-Fit Fitting Material Carbon Steel Fitting Side A Pipe Size 2 1/2 in Fitting Side B Pipe Size 2 1/2 in O-Ring Material HNBR Specific Fitting Shape Straight Connector Finish/Coating Zinc Nickel-Plated Overall Length 4 15/16 in Includes Center Stop Rolled Center Stop Maximum Operating Pressure 200 psi Maximum Operating Temperature 250 Degrees F