Sliding Glass Door Roller Assembly

A home owner from San Juan Capistrano CA says:
Del Mar Engineering Pat # 3,670,357. Need replacement of 4 roller assembles.
User submitted photos of a patio door roller.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. I think you could use either our 81-148 or 81-162, depending on your measurements. We show detailed dimensions for these two rollers, so carefully go over each one and see how well they compare to your measurements.
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