Rollers

A home owner from Carmel, IN says:
Hello, I have a condo glass sliding patio door in a home built in 1989. I could find almost no markings on the patio door except when the lock is taken apart it does say "Allen Stevens" but there are no markings on the rollers. I notice that there is a slot on the rollers that most rollers don't have to slide it in place. If you have any suggestions on this it would be greatly appreciated.
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Bob from SWISCO responded:

At first glance I'm reminded of our 81-154, which is similar in design. Look over the dimensions, particularly the width and thickness of the housing and the wheel diameter, and see if this matches what you need. 

81-154 : Tandem Roller Assembly, 1-1/4
Tandem Roller Assembly, 1-1/4" Steel BB Concave
81-154
$16.23
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