Trying to identify series of this window channel balance

Home Owner from Land o lakes, FL

May 3, 2026 10:10 am

Hello, we are attempting to replace our window channel balance on a 30lb non tilt window. It is a 1/2 inch width and 30 3/4 inches long. It has no stamping on it to indicate the series.

5 user uploaded images

4 Replies

Bob from SWISCO

May 4, 2026 3:12 am

Hey there. Could you confirm the length of the metal channel? Do not include the nylon attachments on both ends. We'll do our best to help from there.

Home Owner from Land o lakes, FL

May 6, 2026 9:01 am

Sorry for the delay, the channel it's self, not including the clips is 30 inches exactly!

Bob from SWISCO

May 6, 2026 3:10 pm

Thanks for getting back to me with the length. This is either an S380-30 or S385-30 Channel Balance, depending on the depth of the bottom shoe. See below. For a stamp option, choose 2950, which will support a sash in the weight range of 28 through 32 pounds.

Comparison of the S378, S380 and S385 balance shoes.