25" Series 390 Channel Balance

Product Code: S390-25

Product Description
This series 390 channel balance also known as a block and tackle balance has a 25" 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 15-001 shoe and a 19-002 top attached.
Stamp Option Sash Weight Range
2410 5 to 9 lbs
2420 9 to 15 lbs
2430 15 to 19 lbs
2440 19 to 24 lbs
2450 24 to 27 lbs
2460 27 to 30 lbs
2465 30 to 33 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.
Guides
Customer Questions & Answers
Discussion # Of Replies Last Post Date
I want change old window channel balance,it not worker.This discussion includes image(s). 2 Jun 1, 2018
Non-Tilt WindowThis discussion includes image(s). 2 Apr 23, 2018
Valances for aluminum windows installed in 1984This discussion includes image(s). 2 Apr 19, 2018
BSI Channel Balances 2420 and 2430This discussion includes image(s). 5 Apr 4, 2018
Series # for 2440 Channel balanceThis discussion includes image(s). 2 Mar 16, 2018
I need a part number for these sash balancesThis discussion includes image(s). 2 Jan 22, 2018
ALI Window partsThis discussion includes image(s). 3 Nov 9, 2017
Stamp Options 2 Oct 5, 2017
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