28B SUB Channel balance parts

A home owner from Kissimmee, FL says:
February 17, 2022
I am looking for channel balance replacement. the pictures show shapes of both end and metal clip. the stamps on the balance is 28B . I measured the balance length is 29 inch (metal channel only, does not include balance attachment). Please help to identify which parts I will buy to replace the broken one.

Hope the photos provided enough information.

Thanks
Thumbnail of the uploaded file named Pic_bottomend_1.JPG
Thumbnail of the uploaded file named Pic_bottomend_2.JPG
Thumbnail of the uploaded file named pic_topend_1.JPG
Thumbnail of the uploaded file named Pic_topend_2.JPG
Thumbnail of the uploaded file named Pic_full.JPG
A home owner from Kissimmee, FL says:
February 17, 2022
The stamp should be 28B USB. I included four more picture to show the balance from different angle.
Thumbnail of the uploaded file named Pic_bottomend_3.JPG
Thumbnail of the uploaded file named Pic_bottomend_4.JPG
Thumbnail of the uploaded file named Pic_topend_3.JPG
Thumbnail of the uploaded file named Pic_topend_4.JPG
Profile picture of Casey
Casey from SWISCO responded:
February 18, 2022

Hello,

With this combination of attachments, you could have either an S380-29 or S385-29 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 2820 spring strength options for your replacement balances based on your 28B stamp.

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 Kissimmee, FL says:
February 18, 2022
Hello Casey, thanks for your prompt reply. I measured the bottom attachment, it is 1 inch. So I will order S380-29.

Could you please let me know more detail of your suggestion of "You'll also need 2820 spring strength options for your replacement balances based on your 28B stamp" ?

Thank you!
Profile picture of Casey
Casey from SWISCO responded:
February 18, 2022

Sure, the 28B stamp on your balance correlates to the 2820 strength option, which means the new balances will support a window sash between 12 and 16 lbs. You can view the full conversion chart under the S380-29 balance product description. 
A home owner from Kissimmee, FL says:
February 18, 2022
Got it, thank you so much for your great help. I am going to place order very soon. I am checking other channel balance in same house to determine how many I should order.

Thanks again and happy Friday and a great weekend !
Profile picture of Casey
Casey from SWISCO responded:
February 18, 2022

I'm glad that we could help. Please let us know if you need anything else and thanks for posting! 
29" Series 380 Channel Balance
29" Series 380 Channel Balance
S380-29
$11.10
29" Series 385 Channel Balance
29" Series 385 Channel Balance
S385-29
$11.10
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
How to replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
READ >
Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.