really old sliding door rollers

A home owner from Boise, Idaho says:
Looking for these rollers that are from a very old glass sliding patio door.
No part numbers or markings are on the assembly.
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A home owner from Boise, Idaho says:
Size is 3" long by about 3/4" thick
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Emily from SWISCO responded:

Hello!

Take a look at our 81-242 roller assembly. Review our dimensions and compare them to yours to see if this matches up to your original part. 

Alternate image for 81-242
Alternate image for 81-242
A home owner from Boise, Idaho says:
This is absolutely the part. You are awesome!!
Any idea if you have the square spacer end piece as well?
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Emily from SWISCO responded:

You're very kind to say so, thank you! Unfortunately, the square spacer is not something that we can supply. I would definitely recommend trying to reuse it if at all possible.

A home owner from Boise, Idaho says:
Thank you so much for taking the time to direct me in the right direction. I have ordered that part number from you.

Have a great week.
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