SWISCO - The Replacement Hardware Authority

12" Series 770 Balance

Product Code: S770-12

Product Description
Series 770 replacement 12" block and tackle channel balance system for a tilt window. Sold individually.
Stamp Option Sash Weight Range
B 7 to 10 lbs
C 10 to 16 lbs
D 16 to 18 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
replacement partsThis discussion includes image(s). 2 Dec 14, 2016
Repair of Tilt Window Double Hung Vinyl Window Right Hand Side BalaneThis discussion includes image(s).This discussion includes video(s). 2 Nov 21, 2016
Window Channel balanceThis discussion includes image(s). 2 Sep 7, 2016
Window balance 4 Aug 12, 2016
Window balance I think it's a patriot windowThis discussion includes image(s). 2 Jul 22, 2016
Tilt window channel balance replacement.This discussion includes image(s). 2 May 31, 2016
Window partsThis discussion includes image(s). 2 May 10, 2016
Sash Balance NeededThis discussion includes image(s). 2 Apr 29, 2016
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