21" Series 800 Channel Balance

Product Code: S800-21

21" Series 800 Channel Balance
$29.57/each
Option:
Product Description
This is a Series 800 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 21" long metal channel. When determining the length, do not include the attached fittings. Only measure the metal channel.
  • Comes fully assembled with the 19-007 top and 15-018 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 3/8".
  • Can work for either the left or right side of the window interchangeably.
  • Used in windows manufactured by both Binnings and Moss.


  • Limited Supply, sold while supplies last.
    Stamp Option Sash Weight Range
    20A 4 to 8 lbs
    20B 8 to 13 lbs
    20C 13 to 18 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 is a code that indicates how much weight a pair of balances can support. You can use the stamp on your original channel balance as a reference in most cases, or you can weigh your sash and refer to the chart above. If your sash's weight falls outside the weight ranges listed on that chart, or you are still unsure how to proceed, ask our experts for help.
Related Videos
Related Item(s)
Customer Questions & Answers
Discussion Posts Last Post Date
looking for window balance match
2 Jul 19, 2023
Channel balancers for storm door
2 Apr 17, 2023
Need help identifying button or plug
This discussion includes image(s). 2 Aug 31, 2019
Measurements for Series 800 balances
2 Mar 19, 2012
Customers Who Bought This Also Bought