Window balance

Looks like you have an old crossbow style balance. They stopped making these years ago, but as long as the spring diameter is 1/2" then you can use our Series 795 as a replacement.

The video below will go into more detail as to exactly what you need to do to get our parts to work in your window. I highly recommend watching it, since it will cover the process step-by-step. Just let me know if you had any questions!