SWISCO - The Replacement Hardware Authority

21" Series 751 options

A quick learner from New Hampshire says:
Before I order what do the Options 20TG, 20HD and 20R mean?

Thanks
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Mike from SWISCO responded:
Good Morning,

The options are important, they represent the strength of the balance. Respond with the number and letters stamped on your existing balance and I can help you choose the right option.
A quick learner from New Hampshire says:
They are Rivco Double Hung Windows 32 years old the only number on them is 20 then down a little further is a u
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Mike from SWISCO responded:
The "20 U" stamp translates to our 20R stamp, for the Series S751-21 Channel Balance.

Have you confirmed your original balance to measure 21" (metal portion online)?
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