21 inch balance identifier

Quick Learner from Portland
We need a Lower 21 inch balance, S385 which weighs 12#, not sure if option 2020 or 2030 is best, which do you recommend?
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2 Replies
Bob
Bob from SWISCO
SWISCO
Expert

Thanks for posting. If your window sash weighs 12 lbs, then the 2030 stamp option should work fine for you.  

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