roller assembly for window door

A quick learner from sliding patio window door says:
I need a roller assembly and a track cap for a Sliding Window patio door. I have a picture of the parts, but cant find them in your catalog.
Roller Assembly 3 in length X 1 1/2 in tall X 1/2 in wide
metal wheel 1 in
70 in track cap
User submitted photos of patio door rollers.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! Please see SWISCO product code 81-242 , Roller Assembly. This appears very similar to what you have. Compare the measurements and let us know if they differ in any way.
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