Channel balance

Home Owner from Davenport, Florida

Aug 30, 2025 12:59 pm

Channel is 29 inches long for just the metal, the Block and tackle section fell out as I was removing these as they were broken, need to know what replacement I should buy. I've done plenty of spiral balances in my homes. This is the first channel.

4 user uploaded images

4 Replies

Emily from SWISCO

Sep 4, 2025 3:46 pm

Hi there!

Thank you for reaching out to us. Take a look at the S380-29 and S385-29 channel balances. You'll have to measure the bottom shoe to determine the best match for your window. There should also be a stamp printed on the metal channel that will indicate the needed strength option.

Comparison of the S378, S380 and S385 balance shoes.

Home Owner from Davenport, Florida

Sep 4, 2025 10:45 pm

After posting this I found the stamp 28C on the old balance, even though the chanel measures 29" should it actually be a 28"?

Emily from SWISCO

Sep 5, 2025 8:02 am

No, the length of the channel is always 1" more than the first two numbers in the stamp, so the metal channel should measure 29". The 28C stamp likely corresponds to the 2830 stamp. A pair of balances with this stamp supports a sash weighing 16 to 23 pounds; however, weighing the window sash on a scale would confirm whether it falls within this weight range.