Ferrule, Compatible Tube Outer Diameter 2 1/2 in, Exterior Finish 32 RA, Material Grade 304, Fitting Material Stainless Steel, Fitting Side A Outside Diameter 2 1/2 in, Fitting Side B Outside Diameter 2 1/2 in, Overall Length 1 1/8 in, Specific Fitting Shape Welding Ferrule, Compatible Fitting Connection Type Clamp, Standards 3A, Compatible Tube Wall Thickness 0.065 in, Fitting Side A Inside Diameter 2 3/8 in, Interior Finish 32 RA