SWISCO - The Replacement Hardware Authority

Channel Balances & Sash Weights

A home owner from California says:
If my window is weighted at 20 lb. and the channel balance is 32" long and 1/2" wide and the top and shoe attachment looks just like the series 380; should I get a pair of 3110 (for ten lb each) or 3120 (for twenty lb total) to replace the two old balancers? Thank you for the help, Micahel
Profile picture of Donna
Donna from SWISCO responded:
32" Series 380 Balance, for a 20 pound sash choose stamp option 3130, this will carry a window sash weight range of 16 through 23 pounds.

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.
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