Patio sliding glass door wheels

A home owner from So California says:
This is the type of wheels I need for my patio sliding glass. There are no markings, and the house was built in 1979 in So. Ca.
The length is 3" and the tabs on top slide into slots on the sill, so removal of the bottom sill is unnecessary. If you have these I'll need a pair, and will also order some track covers and a couple other accessories.
User submitted photos of a patio door roller.
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Paul from SWISCO responded:
Check out our 81-125 and see if you think this would work as a good replacement.
A home owner from So. Cal says:
Paul looked at this part originally and it's only 2 inches long need one 3" with tabs 1.5" apart. Not sure if on-line store is all that is available. Let me know thanks Fred
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Tom from SWISCO responded:
Thanks for getting back to us. The length of a roller doesn't really matter so much, as long as the width and height of the housing, as well as the roller diameter, are the same. As for the distance between the tabs, how are you measuring the distance between them? From the center of one tab to the center of the other, I'm getting approximately 1-3/32". Can you confirm how you're measuring?
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