Bulkhead Union Application Air Oils Fitting Side A Connection Type Push-to-Connect Fitting Side B Connection Type Push-to-Connect Fitting Side A Tube Outer Diameter 1/4 in Fitting Side B Tube Outer Diameter 1/4 in Fitting Material Brass Color Silver Includes Pre-Applied Thread Sealant No Maximum Operating Pressure 250 psi Maximum Operating Temperature 160 Degrees F Specific Fitting Shape Straight Bulkhead Union Release Type Ring Finish/Coating Nickel Plated