Constant force coil spring balances

Question

I need one left hand and one right hand coil balance. It may be hard to see in the photo but the number "8" is stamped onto each spring.

Bob · Accepted Answer

Thanks for writing in. Your pivot shoe resembles are 15-180. This is compatible with our Series 190 Coil Balances. To know what spring weights to select, look for stamp codes on your coil springs. It appears there is an '8' on one of your coil springs--this would indicate that you need an S190-840 (for 8 lbs of support) on each side of your sash. Let us know if you have any questions.