31" Series 377 Channel Balance

Product Code: S377-31

Product Description
This series 377 channel balance also known as a block and tackle balance has a 31" 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 19-018 top attached.
Stamp Option Sash Weight Range
3010 7 to 12 lb
3020 12 to 16 lb
3030 16 to 23 lb
3040 23 to 28 lb
3050 28 to 32 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
Channel balance has # 3020 on the sideThis discussion includes image(s). 5 Jun 14, 2018
Channel balance IDThis discussion includes image(s). 2 Feb 19, 2018
Channel balance idThis discussion includes image(s). 2 Feb 16, 2018
Pam Am balast This discussion includes image(s). 2 Jan 18, 2018
Non fitting ShoeThis discussion includes image(s). 4 Dec 21, 2017
3030 window ValanceThis discussion includes image(s). 2 Mar 22, 2017
Single Hung Window Balance ReplacementThis discussion includes image(s). 2 Feb 1, 2017
Aluminum single hung non tilt 20+ years oldThis discussion includes image(s). 2 Oct 19, 2016
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