SWISCO - The Replacement Hardware Authority

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 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
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
Window Channel Balance IdentificationThis discussion includes image(s). 2 Apr 13, 2016
Balance ReplacementsThis discussion includes image(s).This discussion includes video(s). 4 Mar 9, 2016
Balance identificationThis discussion includes image(s). 5 Oct 2, 2015
Need replacement sash for windowThis discussion includes image(s). 7 Sep 10, 2015
Parts that I needhelp with.This discussion includes image(s). 2 Aug 18, 2015
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