window balance system 23 3 lu cmc 1

A home owner from Lodi, California says:
Please let me know if you are able to provide replacements for the balance system pictured. I will need four of them for all of our vertical opening windows.
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Casey from SWISCO responded:

Hello,

With this combination of attachments, you could have either the S380-24 or S385-24 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 2330 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.
Comparison of the S380 and S385 balance shoes.

A home owner from Lodi, CA says:
The measurement you requested is 1 3/32". It looks like the correct balance is 15-004.

I need 4 of these.
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Casey from SWISCO responded:

Great, then you can purchase the S385-24 (2330) channel balances directly on our website. Thanks for posting! 

A home owner from Lodi, CA says:
The website is asking for an option number. How do I know which one I need?
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Casey from SWISCO responded:

Your 23 3 stamp indicates that you will need a 2330 option to support a sash between 15-18 lbs.

A home owner from Lodi, CA says:
Thank you.
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