coil balance

Question

I have included a picture of the balance and the window information.

Bob · Accepted Answer

See our 15-087 and 15-086. This system uses our Series 180 Coil Balances. Look for stamp codes on the springs themselves to determine the spring weights you need. If there are none or you are unsure, give me the exact weight of the window sash, and I'd be happy to work it out for you.