Union Tee Application Air Chemical Gas Non-Potable Water Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Fitting Side C Connection Type Compression Fitting Material Stainless Steel Fitting Side A Tube Outer Diameter 3/8 in Fitting Side B Tube Outer Diameter 3/8 in Fitting Side C Tube Outer Diameter 3/8 in Thread Size C 9/16-20 Thread Size A 9/16-20 System of Measurement Imperial Material Grade 316 Maximum Operating Pressure 6 550 psi