68 then 30 stacked under the 68.

A contractor from Stoneham, ma says:
Need help finding thes rollers your company manufactured. Says your company name and patten pending on other side. Appreciate whatever assistance you can give me. I need 2 but will take 4 if u have it. Thanks for your time
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Bob from SWISCO responded:

Thanks for posting. This is an old Allen Stevens roller; we are SWISCO. We don't make any rollers but we stock many replacements--including for this one. I believe our 81-002 is what you need. Review the dimensions below to be safe, and see if you think this matches what you need.

Measurements of the 81-002 Weather Tight sliding door roller.
Measurements of the 81-002 Weather Tight sliding door roller.
Measurement from the top hole to the end of the assembly of the 81-002.
Measurement from the top hole to the end of the assembly of the 81-002.
The distance between the two threaded holes and the distance from the top threaded hole to the top of the housing of the 81-002.
The distance between the two threaded holes and the distance from the top threaded hole to the top of the housing of the 81-002.

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