Replacement Coil Balance System

Question

Hello,

I'm looking for some spares of this assembly. From what I've found on the site, it appears that the 15-177 coil balance shoe will work. However, I can't determine the coil spring balance weight. I see a "6K" stamped on the end of the outer spring. Thanks for your assistance.

Bob · Accepted Answer

See our 15-177 Coil Balance Shoe. Look it over to confirm it matches your old hardware. This coil balance shoe is compatible with our Series 152 Coil Springs. If you have one with a stamp of 6', this indicates that one of the springs you need may be our S152-6, which supports of 6 lbs of weight individually. Look for another stamp number on the other coil spring. If there is none, or you are unclear, weigh your window sash. Give us the exact weight of the sash, and we can work out the spring weights you need.