Union Adapter Application Food Processing Potable Water 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 Acetal Color Gray Includes Pre-Applied Thread Sealant No Maximum Operating Pressure 150 psi Maximum Operating Temperature 150 Degrees F Specific Fitting Shape Straight Connector Standards NSF/ANSI 51 NSF/ANSI 61