Cap Application Fuel Oil Gases Compatible Pipe Size 2 in Fitting Connection Type Press Fit Fitting Material Carbon Steel O-Ring Material HNBR Specific Fitting Shape Cap Overall Length 3 3/32 in Includes Center Stop No Center Stop Finish/Coating Zinc Nickel-Plated Compatible Copper Tube Type Not Applicable Compatible Pipe Material Carbon Steel Includes Pre-Applied Thread Sealant Yes Resistance Properties Corrosion-Resistant