29" Series 380 Channel Balance

Product Code: S380-29

29" Series 380 Channel Balance
Main product image of the S380-29 29" Series 380 Channel Balance
19-005 top shoe attachment.
15-005 bottom shoe attachment.
How to identify a replacement channel balance
How to Replace a Non-Tilt Channel Balance
How to Repair a Jammed Window
Quantity Price
1-11 $9.75
12-49 $8.78
50-99 $8.29
100-249 $7.80
250+ $7.31
Please Note: Bulk pricing applies only to purchases of the same option
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Product Description
This is a Series 380 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 29" long metal channel. When determining the length, do not include the attached fittings. Only measure the metal channel.
  • Comes fully assembled with the 19-005 top and 15-005 (1" 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
    2810 7 to 12 lbs
    2820 12 to 16 lbs
    2830 16 to 23 lbs
    2840 23 to 28 lbs
    2850 28 to 32 lbs
    2860 32 to 35 lbs
    2865 35 to 39 lbs
    2870 39 to 42 lbs
    2875 42 to 45 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
Window RepairThis discussion includes video(s). 2 Apr 11, 2014
channel balance option weight differences 4 Jan 10, 2014
Replacing window channel balance on non tilt windows.This discussion includes image(s). 4 Sep 9, 2019
replacement channelsThis discussion includes image(s). 2 Aug 25, 2019
Window balance numbers 28c 2 Aug 8, 2019
Non tilt window 1/2 width channel balances parts needed..This discussion includes image(s). 2 Jul 23, 2019
Help, need parts for a Florida Extruders Milestone windowThis discussion includes image(s). 2 Jul 13, 2019
28 5 HR Caldwell 2 Jul 10, 2019
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