SWISCO - The Replacement Hardware Authority

34" Series 770 Balance

Product Code: S770-34

Product Description
Series 770 replacement 34" block and tackle channel balance system for a tilt window. Sold individually.
Stamp Option Sash Weight Range
A 11 to 16 lbs
B 16 to 22 lbs
C 22 to 27 lbs
D 27 to 32 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 & Comments
Discussion # Of Replies Last Post Date
Channel Balance and Sash Weight 4 Sep 29, 2016
Need tilt window helpThis discussion includes image(s). 2 Sep 23, 2016
3401 stamp for a Series 770? 2 Aug 9, 2016
Is this the correct balance? This discussion includes image(s). 3 Jun 11, 2015
34B Replacement Channel BalanceThis discussion includes image(s). 9 Oct 28, 2014
s770-34 balance Info 2 Jul 22, 2014
Balances 4 Apr 28, 2014
Balance replacementsThis discussion includes image(s). 2 Jan 30, 2014
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