Single wheel roller for patio door

A quick learner from Burlington, Ontario says:
Hi there, overall measurement is 2.75 in by 1.75 in. The wheel itself is 1.25 in in diameter and width is 1/4 in. it is stamped DEL MAR TORONTO. Please advise when you have a moment! Thx
User submitted photo of their door roller.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
This looks very similar to our 81-268. Take a look and compare it to what you have.
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