replacement roller for pella glass sliding door

A friend from michigan says:
My close-up picture shows my rollers have a flange on them.

will your 81-249 work for me anyway?
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Tom from SWISCO responded:

If your roller has a flange then odds are you want the 81-244, not the 81-249. These are not interchangeable. However if you want to be 100% sure you will need to remove the original and compare it to the specs we show for this part. That's the only way to know.

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Alternate image for 81-244
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Profile view of 81-244
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