Dave Sr. from SWISCO responded:
March 22, 2018
I'm not sure what you mean when you compare R20 to R-20. Those numbers don't mean anything to me, I'm afraid. If memory serves, Viking patio doors used a type of double roller assembly, like our 81-155 or 81-030. However these are just examples. I can't know for sure what you need without seeing the original out of the door.
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Dave Sr. from SWISCO responded:
March 26, 2018
I'm afraid I can't cross reference those numbers. I've searched everywhere on our site and have not found them. Where exactly are you seeing that designation? Ultimately, in order to identify what you need, we need to see a picture of your roller out of the door. I am sorry we cannot offer an easier solution. |