SWISCO - The Replacement Hardware Authority

Need replacement channel balance 29 4 LW CMC 11

A home owner from Brentwood, CA says:
Need replacement channel balance for 29 4 LW CMC 11
Window sash weighs 24 pounds
Dimensions of the old channel balance are: 1/2" x 30"

Can you please tell me which model I need to order?

Thanks!
Tony
A customer submitted photo of channel balance attachments.
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Paul from SWISCO responded:
Thanks for posting, Tony! Before I can suggest an applicable replacement for your channel balance, we just need to identify that bottom shoe. Please take a look at our 15-004 and 15-005 bottom shoes and compare their dimensions to your own. Please note that the 15-004 has a depth of 1-3/32", while the 15-005 has a depth of only 1". Which one more closely matches your own shoe? Once we have that information, we can work from there!
A quick learner from Brentwood, CA says:
Hi Paul,
I measured mine and it is 1" in depth and seems to be a match for the 15-005.
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Paul from SWISCO responded:
In that case, I recommend that you take a look at our 30" Series 380 channel balance, otherwise listed as our S380-30. I also recommend you select the 2940 stamp option, which has a sash weight range of 23 through 28 pounds.

This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate
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