milgard aluminum window channel balance

A home owner from Tacoma Wa says:
the stamped number on one balance is 26 D and the other is a 20 C. Are the balance's available for these windows and what is the cost

the metal clips that attach to the window to load the balance has broken on both models

Thanks for any help
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting. Before I can confirm what Series channel balance you have, I just need to ask a few more questions. I see you mention two different balances. What is the length of each of their metal channels, respectively? Are they for the same window, or for two different windows? Are their nylon attachments identical?

If the attachments are identical, then I'll just need your help to determine what the bottom shoe is. Please look at the measurements for our 15-001 and 15-002 bottom shoes and note their depths. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?
A quick learner from Tacoma Wa says:
the bottom shoe is the 15-001, 1 1/8".
the 27" balance is the only one I need for the time being as I was able to get the shorter one on the other window working when I finally figured out what and where it all hooked up. Not bragging just lucky it kind of fell in place.
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Tom from SWISCO responded:
I'm glad to hear you were able to sort the other balance out! You're right--sometimes these things have a way of just falling into place.

Now, for the other balance, assuming that it's 21", I think you should consider our S390-21 channel balance. Does that look about right? Based on your stamp, I'd also recommend the 2030 option. This can carry a window sash weight range of 12 to 15 pounds. Does your sash's weight fall within that range?

Please keep in mind that the weight range 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.
A quick learner from tacoma Wa says:
Sorry for the misunderstanding, the balance is 27" in length not 21". the weight of the sash should fall within the suggested range as the window is an aluminum framed 3' x 5'
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Tom from SWISCO responded:
Oh, I'm sorry! I must have been turned around somewhere. So now I'm looking at the S390-27. Base don the stamp 26D, I would recommend the 2640 option, which can carry 19 through 26 pounds.
A quick learner says:
Okay just to be sure I weighed the window and it is 17.5 lbs
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Tom from SWISCO responded:
Ah, it's a good thing you double checked. How about 2630, then? That can hold 13 through 19 pounds.
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