Balance for non tilt aluminum window 3620, metal balance length is 37". I need 4 of them.
Pictures are of top. Will send additional pictures of bottom.
Casey from SWISCO responded:
February 15, 2022
Hello, With this combination of attachments, you could have either an S380-37 or S385-37 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 3620 spring strength options for your replacement balances. Thank you and let us know if you have any other questions or concerns. Comparison of the S380 and S385 balance shoes.
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