29" Series 770 Balance

Product Code: S770-29

Product Description
Series 770 replacement 29" block and tackle channel balance system for a tilt window. Sold individually.
Stamp Option Sash Weight Range
B 12 to 18 lbs
C 18 to 23 lbs
D 23 to 28 lbs
E 28 to 32 lbs
F 32 to 36 lbs
*This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
Good Idea!
Balances are sold individually, however, it is a good idea to replace both window balances at the same time. Pairing a new balance with an old one would cause the new balance to wear out faster.
Helpful Tip!
The stamp option represents the strength of the channel balance. Locate the stamp on your channel balance. If your stamp does not match any of the stamp options available or you are unsure of which stamp option you should choose: ask our experts for help.
Customer Questions & Answers
Discussion # Of Replies Last Post Date
Replacing balance on window 2 Oct 5, 2017
Old Channel BalancesThis discussion includes image(s). 7 Aug 24, 2017
Tilt window partsThis discussion includes image(s). 4 Jul 3, 2017
Broken balanceThis discussion includes image(s). 2 Jun 16, 2017
channel balance identification and replacement This discussion includes image(s). 2 Feb 1, 2017
Vinyl DH Window Balance Identify and QuoteThis discussion includes image(s). 2 Sep 30, 2016
Balance string loose on single hung aluminum windowThis discussion includes image(s). 8 Jul 29, 2016
Window Channel Balance 29C Replacement 2 Jul 15, 2016
Start a new discussion
Use this form to ask questions or to share your experiences regarding this product. Every discussion will be reviewed and answered by our experts.
(your email address will be kept private and is only used to inform you when a response has been made)