balance repalcement

A home owner from Massachusetts says:

January 29, 2024

Hello. I am looking to replace a a block & tackle balance for a non tilt window. the balance is 9/16 wide. and measures 36"
I believe it may be the series 390 channel balance. the bottom shoe is 1 1/8. It has a stamp on it 35-2 (is this the sash weight? I don't know (pictures enclosed)
Thank You

Thumbnail of the uploaded file named Stamp

Thumbnail of the uploaded file named Shoe

Thumbnail of the uploaded file named Top

Thumbnail of the uploaded file named Shoe side

Thumbnail of the uploaded file named Shoe depth

Casey from SWISCO responded:

January 30, 2024

Hello,

I agree that as long as your bottom fitting measures 1-1/8" deep, then the S390-36 would be the way to go. Your stamp would correspond to the 3520 strength option, which will support a sash weight between 13-18 lbs. Take a look and let us know if you have any other questions.

Close up view of the S390 balance shoe.

36" Series 390 Channel Balance

S390-36

$12.27

How to Replace a Non-Tilt Channel Balance

VIDEO

WATCH >

How to Repair a Jammed Window

VIDEO

WATCH >

How to Identify Replacement Channel Balances

VIDEO

WATCH >

How to replace a non-tilt channel balance

GUIDE

READ >

Choosing a Non-tilt Channel Balance: What Will We Need?

GUIDE

READ >

You are a:
Located in:
Email:	(your email address will be kept private and is only used to inform you when a response has been made)
Post:
Images:
	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.