Patio Door Rollers ID

A home owner from Eugene, Oregon says:
April 18, 2020
Hi. There are no markings on the door other than the sticker in the picture. The door is very heavy and has two tandem rollers at the bottom (pictured). I found a couple in your list that appear to be the same but I am not sure which one is the correct one.

Thank you. Barry
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Bob from SWISCO responded:
April 20, 2020

Hey Barry. The 81-158 Roller immediately comes to mind, but ultimately you'll have to compare the dimensions to see if it matches. The most important dimensions are the diameter of the wheel(s) and the height and thickness of the assembly. Another possibility is the 81-166S, but I suspect the 81-158 is the better match. See what you find.
Dual Roller Assembly, 1-1/4" Steel BB
Dual Roller Assembly, 1-1/4" Steel BB
81-158
$14.40
Dual Roller Assembly, 1-1/4"
Dual Roller Assembly, 1-1/4"
81-166S
$25.70
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