Tandem SLG Door Rollers

A handy person from Reno, Nevada says:
I'm looking to replace 2 sets on a 22 yr old sliding glass door. Measurements are:
Overall length: 6 3/8"
Length of body without screw brackets: 4 9/16"
Width: 11/16"
Wheels are metal
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Casey from SWISCO responded:

Hello,

Your roller resembles the 81-156. Take a look and compare the specifications from our product page below to your part. Thanks for posting! 

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Alternate image for 81-156

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