Compression Fitting Union, Application Chemical, Fitting Side A Connection Type Compression, Fitting Side B 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, Material Grade 316, Maximum Operating Pressure 6, 550 psi, Maximum Operating Temperature 1, 200 Degrees F, Overall Length 2 7/16 in, Specific Fitting Shape Straight Bulkhead Union, Compatible Fitting Brands Let-Lok, Swagelok