Window balance

Quick Learner from 92563
the metal part measures 23", the window weighs 12.5lbs
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Emily
Emily from SWISCO
SWISCO
Expert

Hi there!

With this combination of attachments, you could have either an S380 or S385 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need a spring strength of 2220. 

If you have any further questions just let us know! 

Comparison of the S380 and S385 balance shoes.
Comparison of the S380 and S385 balance shoes.
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