Need Help Identifying Replacement Window Channel

A home owner from Issaquah, WA says:
I need assistance identifying replacement window channels.

* Milgard Window
* Channel is 1/2 inch wide and 21 inches long
* Stamp says 20 9 FV CMC 2 (I know this is old)

Thanks in advance for your help!
Michelle
Thumbnail of the uploaded file named Window Channel Balance.png
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Casey from SWISCO responded:

Hello,

With this combination of attachments, 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 attachment, and the Series 385 has a 1-3/32" attachment. You'll also need to weigh your sash to determine which option you'll need. There is a chart on the product page that explains how to choose your option based on the sash weight.

Thank you and let us know if you have any other questions or concerns.


1
A home owner from Issaquah, WA says:
Thanks so much! I measured and I think it's the 1 3/32" - it was hard to tell though as it could go either way. Maybe I need a better ruler. Lol. The sash weighed 26.4 pounds. I ordered (2) S385-21 2050 and I hope they will work. Thanks again for your help!
Michelle
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Casey from SWISCO responded:

Great, it sounds like you purchased the correct replacement. You could try measuring another balance in the house if you want to double-check and as long as the depth is more than 1", you're good to go. Thank you. 

S380-21 : 21
21" Series 380 Channel Balance
S380-21
$9.02
VIEW >
S385-21 : 21
21" Series 385 Channel Balance
S385-21
$9.02
VIEW >
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