Compression Fitting Union, Application Gases, Liquids, Fitting Side A Connection Type Compression, Fitting Side B Connection Type Compression, Fitting Material Stainless Steel, Fitting Side A Tube Outer Diameter 1/4 in, Fitting Side B Tube Outer Diameter 1/4 in, Material Grade 316, Maximum Operating Pressure 10, 000 psi, Maximum Operating Temperature 1, 200 Degrees F, Overall Length 2 9/32 in, Specific Fitting Shape Straight Bulkhead Union, Compatible Fitting Brands CPI (TM), Thread Size A 7/16-20