Searching for sliding commercial door tandom roller

A quick learner says:

I need to purchase two sets of this roller. they're on commercisal doors installed 1993 government building. no name plates can be found. as you can see they have two screw hols not 1 like I found on your site. Any help would be appreciated. Project Manager Wayne

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Tom from SWISCO responded:

Hello! Please see our 81-183. This looks like a close match to your roller to me, but let me know what you think.

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