Patio door rollers

A home owner from USA says:
Attached are pictures of the patio door roller I am trying to match. This is for a door installed when my townhouse was built in 1975. I do not know the manufacture of the door nor are there any markings on the old roller.The roller measures 2 1/2" long by 1" high by 3/4" thick (at the widest point) The wheel is 1 1/8" dia.
Any help you can offer will be appreciated.
Thank you
Fred M
User submitted photo of their door hardware.
Profile picture of Paul
Paul from SWISCO responded:
Hello, Fred. Check out our 81-083, I think you'll find that this is a good match.
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