Can you Identify this window balance? The metal piece is 22" long and 9/16 wide.
Thank you
Marty
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Casey from SWISCO responded:
February 20, 2023
Hello, It looks like you have either our S351 , with a 15-002 bottom attachment, or S390 , with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 1440 spring strength option for your 15" replacement balances. The stamp on your 22" balances is a bit out of the ordinary so I would recommend weighing your sash to determine which option you'll need. There is a chart on the product page that explains how to choose your option based on the sash weight. Thank you!
![]() Comparison of the S351 and S390 balance shoes.
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