Union Application Air Inert Gases Non-Combustible Gases Potable Water Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Material Brass Fitting Side A Tube Outer Diameter 1/2 in Fitting Side B Tube Outer Diameter 1/2 in Maximum Operating Pressure 750 psi Maximum Operating Temperature 200 Degrees F Overall Length 1 29/32 in Specific Fitting Shape Straight Connector Thread Size A 11/16-20 Thread Size B 11/16-20 Series Compression