sliding glass door tandem rollers

A home owner from Melbourne says:
September 19, 2016
I have a need to replace a number of sliding glass door tandem rollers. Existing parts are TRUTH 31761a. Your item product 81-149 looks identical. Are you able to confirm this or is there any additional information that is needed from me?

Thank you in advance for your time and assistance and I look forward to hearing from you
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Tom from SWISCO responded:
September 20, 2016
That number is associated with a few different rollers, I'm afraid. Honestly, numbers found on the hardware itself isn't often the most reliable method, as manufacturers change codes and numbers all the time through the years. Your best bet is to carefully go over the pictures and measurements we have for the 81-149 to confirm if it matches. If there are no differences that you can see, then I see no reason why it can't work.
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