Reducing Elbow 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 5/8 in Fitting Side B Tube Outer Diameter 1/2 in Maximum Operating Pressure 150 psi Maximum Operating Temperature 250 Degrees F Specific Fitting Shape 90 Degrees Reducing Elbow Thread Size A 13/16-18 Thread Size B 11/16-20 System of Measurement Imperial Standards NSF/ANSI 61 Annex G