Union Tube 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 7/8 in Fitting Side B Tube Outer Diameter 7/8 in Maximum Operating Pressure 450 psi Maximum Operating Temperature 200 Degrees F Overall Length 2 3/32 in Specific Fitting Shape Straight Connector Thread Size A 1 1/8-18 Thread Size B 1 1/8-18 Series Compression