Pipe sizes can be confusing so double check the size you need. Measure the INSIDE diameter of the straight PVC pipe the fittings will be attached to. Most PVC chairs use 1-1/4" pipe and tables are typically 1-1/2". In the picture below, the fittings for a 1-1/4" pipe will have about a 1-5/8" opening. However, they are still named by the PIPE size that they connect to.
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