window balance

Quick Learner from NYC
I need 39" window balances for heavy kitchen windows, as you can see from pictures above #3850 is printed on it. I found this here: "39" Series 385 Channel Balance, Product Code: S385-39" and I'm guessing to choose stamp option 3840, regarding sash weight range. I'm not sure this is correct however. Can you confirm this is the window balance I need or steer me to the correct model so I can put in an order? Thank you very much
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Casey
Casey from SWISCO
SWISCO
Expert

Hello,

It looks like you have either our S351-39, with a 15-002 bottom attachment, or S390-39, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need to know  the weight of your sash in order to choose the correct option.


Comparison of 15-001 & 15-002
Comparison of 15-001 & 15-002
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