Union, Application Air, Inert Gases, Non-Combustible Gases, Non-Potable Water, Fitting Side A Connection Type Compression, Fitting Side B Connection Type Compression, Fitting Material Brass, Fitting Side A Tube Outer Diameter 3/8 in, Fitting Side B Tube Outer Diameter 3/8 in, Maximum Operating Pressure 1,000 psi, Maximum Operating Temperature 200 Degrees F, Overall Length 1 17/32 in, Specific Fitting Shape Straight Connector, Thread Size A 9/16-24, Thread Size B 9/16-24, Series Compression