21" Series 351 Channel Balance

Product Code: S351-21

21" Series 351 Channel Balance
Main product image of the S351-21 21" Series 351 Channel Balance
Measurements of 19-002 top balance shoe.
Measurements of 15-002 bottom shoe.
How to replace a window sash channel balance
How to identify a replacement channel balance
Quantity Price
1-11 $8.95
12-49 $8.05
50-99 $7.61
100-249 $7.16
250+ $6.71
add $0.75
Product Description
This series 351 channel balance also known as a block and tackle balance has a 21" 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 15-002 shoe and a 19-002 top attached.
Stamp Option Sash Weight Range
2010 5 to 8 lb
2020 8 to 12 lb
2030 12 to 15 lb
2040 15 to 23 lb
2050 23 to 27 lb
*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
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