SWISCO - The Replacement Hardware Authority

Window channel balance

A handy person from San Mateo says:
Hello there I am looking for a channel balance that fits these requirements 26hp33-36 a21x cmc 4. Where is the part number located? I am looking at the .5 inch non tilt window thanks I need 2.
User submitted image of their window hardware.
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Tom from SWISCO responded:
I'm afraid I cannot identify what you have based on this picture. You likely won't find a part number that tells you exactly what you need. When it comes to replacing balances, the only sure way to find a match is by comparing hard details. I recommend that you look at our Channel Balance Home Page and follow the steps in order to find the Series that best matches what you have.
A handy person from San Mateo says:
Okay So I'll send over a few more pics and I want to know what is the difference between the S380 model and the S385.
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Tom from SWISCO responded:
The only difference between these two balances is the size of the bottom shoe. It's a slight difference, but it's important to determine which is closer to yours. You will have to measure your shoe to confirm. When measuring, make sure to account for wear.
A home owner from San Mateo says:
Okay the shoe measurement is 7/8 x 1 x .5 (inches) Now question I sent over a picture of the overall length of the balance is the measurement from plastic shoe to shoe? or just the length of the steel? Also what weight range should I use? It is a heavy window, do the photos have the information about the spring tension? Thanks. Ready to order. 7/8 is the wing to wing measurement.
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Tom from SWISCO responded:
When determining the length of the balance, you only want to go by the metal channel. Don't count the plastic ends. As for the option, you may want to weigh the sash on a scale to confirm the best match.
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