Union Application Gasoline Oils Potable Water Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Brass Fitting Side A Tube Outer Diameter 1/2 in Fitting Side B Tube Outer Diameter 1/2 in Maximum Operating Pressure 200 psi Maximum Operating Temperature 250 Degrees F Specific Fitting Shape Straight Connector Thread Size A 11/16-20 Thread Size B 11/16-20 System of Measurement Imperial Standards NSF/ANSI 61 Annex G