SWISCO - The Replacement Hardware Authority

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 & Comments
Discussion # Of Replies Last Post Date
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
What Stamp Option should i choose 4 Apr 14, 2015
Which option to chooseThis discussion includes video(s). 2 May 22, 2014
Channel balance part numberThis discussion includes image(s). 8 Sep 17, 2013
Help Identifying Channel Balance for 2 different windows in my home.This discussion includes image(s). 4 Jul 23, 2013
Looking for this balance, Stamp 2030This discussion includes image(s). 4 Jun 12, 2013
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