21" Series 380 Channel Balance

Product Code: S380-21

Product Description
This series 380 channel balance also known as a block and tackle balance has a 21" long metal channel and is for a non-tilt window. The channel's width measures 9/16" but is considered 1/2" in the trade. This balance comes fully assembled with a 15-005 shoe and a 19-005 top attached.
Stamp Option Sash Weight Range
2010 5 to 8 lb
2020 8 to 12 lb
2030 12 to 15 lb
2040 15 to 23 lb
2050 23 to 27 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 & Answers
Discussion # Of Replies Last Post Date
: to find a replacement for non tilt window channel spring bakanceThis discussion includes image(s). 2 Jan 16, 2018
Replacement channel balanceThis discussion includes image(s). 2 Nov 2, 2017
Replacement balance This discussion includes image(s). 2 Jul 6, 2017
1/2 Wide Channel BalanceThis discussion includes image(s). 3 Nov 10, 2016
Channel BalanceThis discussion includes image(s). 6 Oct 31, 2016
Please help identify either S385 or S380?This discussion includes image(s). 2 Aug 29, 2016
milgard replacement balancerThis discussion includes image(s). 3 May 19, 2016
Help to identifyThis discussion includes image(s). 4 Oct 9, 2015
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