I have a Haugh's Sunray 18' round above ground pool, which I bought in 1994. The coping strip that holds the liner in place is completely cracked up. You have several different coping strips in your catalog, and I don't know which one to choose.
My pool has a 4' high metal wall. On top of that is a metal slotted tube that gives rigidity to the top of the wall. The OD of the tube is 1/2". The pool liner overlaps the tube and the coping holds the liner in place over the slotted tube. The coping would need to be a minimum of 1/2" inside. I already have tried your part# 1382480, but it is definitely too small. I think it should be a minimum of 1/2" ID and possibly even 9/16 for a snug fit over the liner. I have the original manual with pictures of the parts, but no part numbers. If you wish I can scan the pages and email them to you.
Can you tell me which coping I need?