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 7/8 in Fitting Side B Tube Outer Diameter 7/8 in Maximum Operating Pressure 120 psi Maximum Operating Temperature 250 Degrees F Specific Fitting Shape Straight Connector Thread Size A 1 1/8-18 Thread Size B 1 1/8-18 System of Measurement Imperial Standards NSF/ANSI 61 Annex G