16.5 lb Series 230, Dual

This is a Series 230 replacement constant force balance system for tilt windows. It moderates the operation of your window sash using a specifically calibrated coil spring that allows the window to stay open when raised and remain shut when closed.

• This balance comes complete with a pivot cam, coil springs, coil spring cover, and mounting bracket.
• The spring is stainless steel and coated for low friction and corrosion resistance.
• Fits pocket size 1.292" x .562".
• A pair of 15 lb assemblies will carry 28.01 to 31 lbs, (sold individually). The weight you need should be indicated as a stamp or imprint on your old balance cartridge cover.