This item is for 1pc X stainless steel tee pipe

Material: 304 stainless steel

19mm-51mm Wall Thickness: approx 1.5mm
57mm-63mm Wall Thickness: approx 2.0mm

Size Outer Diameter:

19mm/0.75 inch, 25mm/1 inch, 32mm/1.25 inch, 38mm/1.5 inch
45mm/1.77 inch, 51mm/2 inch, 57mm/2.25 inch, 63mm/2.5 inch

Please allow 0-1mm discrepancy due to different measurement method.