31" Series 390 Channel Balance

Product Code: S390-31

31" Series 390 Channel Balance
Main product image of the S390-31 31" Series 390 Channel Balance
Measurements of 19-002 top balance shoe.
Measurements of 15-001 bottom balance attachment.
How to identify a replacement channel balance
How to Replace a Non-Tilt Channel Balance
How to Repair a Jammed Window
$10.55/each
Quantity Price
1-11 $10.55
12-49 $9.50
50-99 $8.97
100-249 $8.44
250+ $7.91
Please Note: Bulk pricing applies only to purchases of the same option
Option:
3010
3020
3030
3040
3050
add $0.75
3060
add $1.25
Product Description
This is a Series 390 channel balance for non-tilt windows. It moderates the operation of your window sash using a specifically calibrated spring and pulley system that allows the window to stay open when raised.
  • This balance has a 31" long metal channel. When determining the length, do not include the attached fittings. Only measure the metal channel.
  • Comes fully assembled with the 19-002 top and 15-001 (1-1/8" deep) bottom fittings and will be ready to install out of the box.
  • The strength you need should be indicated as a stamp or imprint on your old metal channel. If you do not have a stamp, or cannot match it up to our options, weigh your sash on a scale and refer to the chart below.
  • The width of the metal channel measures 9/16" but is considered 1/2" in the trade.
  • Can work for either the left or right side of the window interchangeably.
Stamp Option Sash Weight Range
3010 7 to 12 lbs
3020 12 to 16 lbs
3030 16 to 23 lbs
3040 23 to 28 lbs
3050 28 to 32 lbs
3060 32 to 35 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
Question regarding the stsmp 2 May 6, 2020
30 DS BSI MC 32 channel balanceThis discussion includes image(s). 2 Apr 27, 2020
Channel Balance Stamp IDThis discussion includes image(s). 2 Apr 15, 2020
31" Channel Balances NeededThis discussion includes image(s). 2 Mar 1, 2020
Window BalancesThis discussion includes image(s). 2 Dec 9, 2019
Channel part replacement This discussion includes image(s). 2 Oct 4, 2019
I think the home builder did something wrongThis discussion includes image(s). 9 Aug 30, 2019
What Balance is This?This discussion includes image(s). 6 Aug 23, 2019
Start a new discussion
Use this form to ask questions or to share your experiences regarding this product. Every discussion will be reviewed and answered by our experts.
(your email address will be kept private and is only used to inform you when a response has been made)