28B SUB Channel balance parts : SWISCO.com

Home Owner from Kissimmee, FL

Feb 17, 2022 5:28 pm

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

5 user uploaded images

7 Replies

Home Owner from Kissimmee, FL

Feb 17, 2022 5:41 pm

The stamp should be 28B USB. I included four more picture to show the balance from different angle.

4 user uploaded images

Casey from SWISCO

Feb 18, 2022 10:09 am

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 S378, S380 and S385 balance shoes.

Home Owner from Kissimmee, FL

Feb 18, 2022 10:50 am

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!

Casey from SWISCO

Feb 18, 2022 1:04 pm

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.

Home Owner from Kissimmee, FL

Feb 18, 2022 1:24 pm

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 !

Casey from SWISCO

Feb 18, 2022 2:17 pm

I'm glad that we could help. Please let us know if you need anything else and thanks for posting!