Channel balance : SWISCO.com

Handy Person from Chico, Ca

Jan 14, 2023 12:47 pm

Numbers on part: 20 4 HT CMC 4

21" long metal piece, 5/8" x 1/2"

5 user uploaded images

8 Replies

Emily from SWISCO

Jan 17, 2023 1:32 pm

Hello there!

My recommendation would be our S380-21 or S385-21 channel balance. The important difference between these two parts is the depth of the bottom shoe so you'll need to measure as shown below. Based on your 20 4 stamp, you will need the 2040 spring strength option.

Comparison of the S380 and S385 balance shoes.

Handy Person from Chico, Ca

Mar 9, 2023 12:23 am

Excellent thank you! It took a while to get back to the job, but finally measured it. It's 1 & 3/32, so I'll order the S385-21.

Thank you for being so helpful!

Emily from SWISCO

Mar 9, 2023 7:56 am

My pleasure! Let me know if you need anything else, I'd be happy to help!

Handy Person from Chico, Ca

Apr 19, 2024 4:57 pm

So I have another window that needs new channel balances.

The metal length is 30", full length is 31"

Depth 5/8", width 1/2", depth of bottom shoe 1 3/32"

The numbers are hard to read; looks like 29 4 GT CMC 2.

I'd guess this would translate to S385-30 with a 2940 spring?

Is that right?

(See photos)

Best regards,
Ben

5 user uploaded images

Emily from SWISCO

Apr 23, 2024 10:41 am

Hi there Ben. I agree that these photos appear to match the Series 385 with the 2940 option based on the information you have given. However, before you place your order, could you upload a photo showing the inside of the metal channel where the innerspring connects to the pulley mechanism?

Handy Person from Chico, Ca

May 17, 2024 4:56 pm

Thanks! Please see the attached photos.

3 user uploaded images

Emily from SWISCO

May 20, 2024 1:39 pm

Great, thank you very much! Your pulley system looks standard to me so you should be all set. You can place an order right on our website at your convenience!