Bob from SWISCO responded:
August 20, 2023
Thanks for posting. Pella sliding glass doors often use either the 81-098 (we carry a generic version of this also, the 81-249), or the 81-244. Unfortunately I can't narrow it down any further than this; ultimately you'll need to compare the old rollers to these choices to see if either match what you need. Alternate image for 81-098
Alternate image for 81-244
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