18" Series 380 Channel Balance

Product Code: S380-18

Product Description
This series 380 channel balance also known as a block and tackle balance has a 18" 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
1710 5 to 8 lbs
1720 8 to 12 lbs
1730 12 to 14 lbs
1740 14 to 17 lbs
1750 17 to 20 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
New Channel balances make window too hard to close 2 May 25, 2017
Channel balance series 2 May 10, 2017
window channel balanceThis discussion includes image(s). 2 May 4, 2017
What stamp option should I choose for 11/07UNIQUE 17-B-20 2 Jun 20, 2016
Kinco window balance replacemaent 2 May 10, 2016
Searching for 1720RThis discussion includes image(s). 2 Mar 25, 2016
Channel balance ID 2 Apr 20, 2015
Replacing channel balance for Alcan single hung windowThis discussion includes image(s). 4 Apr 3, 2014
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