37" Series 351 Channel Balance

Product Code: S351-37

37" Series 351 Channel Balance
Main product image of the S351-37 37" Series 351 Channel Balance
View of 19-002 attachment
View of 15-002 attachment
How to Identify Replacement Channel Balances
How to Replace a Non-Tilt Channel Balance
How to Repair a Jammed Window
Quantity Price
1-11 $12.45
12-49 $11.20
50-99 $10.58
100-249 $9.96
250+ $9.34
Please Note: Bulk pricing applies only to purchases of the same option
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Product Description
This is a Series 351 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 37" 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 15-002 (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
    3610 8 to 13 lbs
    3620 13 to 18 lbs
    3630 18 to 23 lbs
    3640 23 to 30 lbs
    3650 30 to 35 lbs
    3660 35 to 39 lbs
    3665 39 to 42 lbs
    3670 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
Channel Balance NeededThis discussion includes image(s). 7 Mar 14, 2021
BalancesThis discussion includes image(s). 14 Dec 1, 2020
Channel Balance IDThis discussion includes image(s). 5 Jul 13, 2020
36402 channel balance 37"This discussion includes image(s). 2 Jan 17, 2020
Channel Balance IDThis discussion includes image(s). 2 Jul 9, 2019
What Channel Balance do I Order?This discussion includes image(s). 2 Jan 21, 2019
Channel Balance code for Weight 2 Jun 22, 2016
Window balances 4 Jun 4, 2014
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