Window Balance

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Home Owner from Longmont, CO

Feb 28, 2022 1:04 pm

Stamped marking on part is: 20 4 AP CALDWELL

Length of metal channel is 21"

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2 Replies

Emily from SWISCO

Mar 1, 2022 9:47 am

Hello!

With this combination of fittings, you could have either an S380-21 or S385-21 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom fitting, and the Series 385 has a 1-3/32" fitting. You will also need the 2040 spring strength option.

Let me know if you have any questions!

Comparison of the S378, S380 and S385 balance shoes.