Where do you measure the 2.5 inch? Is that to the out side or inside of the pipe? I use my caliper to measure the inside and get more then
2.25 but less than 2.5. If I measure the outside I get 2.5 on the mark.Pipe and tubing are usually manufactured with outside dimensions as standard. Inside dimensions can sometimes be specified, especially in tubing, but 99% go by O.D.
Didn't the exact 2.5" on the O.D. ring a bell at all?
John
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