Female Coupling Application Gasoline Oils Potable Water Fitting Side A Connection Type Compression Fitting Side B Connection Type FNPT Fitting Material Brass Fitting Side A Tube Outer Diameter 7/8 in Maximum Operating Pressure 120 psi Maximum Operating Temperature 250 Degrees F Specific Fitting Shape Straight Adapter Fitting Side B Pipe Size 3/4 in Thread Size A 1 1/8-18 Thread Size B 3/4-14 System of Measurement Imperial Standards NSF/ANSI 61 Annex G