window balance code

A quick learner from minnesota says:
September 14, 2020
On my balance (series 795 ) it has ingraved 20-7.I know the 20 means 21"
But,is the 7 the weight? If so, would I just order the standard?
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Tom from SWISCO responded:
September 17, 2020

That's actually a really weird stamp to have on a Series 795 balance. I highly recommend that you measure your metal channel to confirm that it's 21" and then weigh your sash to confirm if any of our stamps can work. Yours might be an older or off-brand version, but I can't say for sure.
A quick learner from minnesota says:
September 17, 2020
It is a 21". Already measured.
21" Series 795 Channel Balance
21" Series 795 Channel Balance
S795-21
$13.12
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