Stem Adapter Application Potable Water Fitting Side A Connection Type Tube Stem Fitting Side B Connection Type FNPT Fitting Side B Pipe Size 1/4 in Fitting Side A Tube Outer Diameter 3/8 in Fitting Material Polypropylene Color White Maximum Operating Pressure 232 psi Maximum Operating Temperature 149 Degrees F Specific Fitting Shape Straight Adapter Standards NSF/ANSI 51 NSF/ANSI 61 Minimum Operating Temperature 68 Degrees F Resistance Properties Chemical-Resistant