2 types of rollers

A home owner from Fairfax, VA says:
It says "Product of Del Mar eng Co. Long Beach CA. Pat 3,670,357" on them.
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Casey from SWISCO responded:

Hello,

Take a look and compare the specifications of the 81-033 and 81-243 rollers to your original assemblies. Thanks for posting! 

Alternate image for 81-033
Alternate image for 81-033

Alternate image for 81-243
Alternate image for 81-243

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