SWISCO - The Replacement Hardware Authority

28" Series 770 Balance

Product Code: S770-28

Product Description
Series 770 replacement 28" block and tackle channel balance system for a tilt window. Sold individually.
Stamp Option Sash Weight Range
B 12 to 18 lb
C 18 to 23 lb
D 23 to 28 lb
E 28 to 32 lb
F 32 to 36 lb
*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
Determining the sash weight # 2 Oct 11, 2016
Balance findingThis discussion includes image(s). 2 Jul 14, 2016
double hung window This discussion includes image(s). 2 Jul 11, 2016
Window balancesThis discussion includes image(s). 2 Jun 9, 2016
Pivot shoe IDThis discussion includes image(s). 2 May 26, 2016
Balance IDThis discussion includes image(s). 4 Apr 6, 2016
replacements balancerThis discussion includes image(s). 2 Mar 22, 2016
Unique balance replacement 4 Mar 8, 2016
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