Broken window coil balance

Hello, I am looking for the window coil balance in the photos. The only information about the windows I can find is that of the Quality Control & Testing AAMA Certification Program,

Series: 3500, AAMA/NWWDA 101/I.S. 2-97,
H-R20-48x78
H-R35*-36x66.

And warranty information:

MI Windows & Doors 11153252.7
3500


I took the sash out of the casing and weighed it on my bathroom scale, and it is 22 lbs, but I'm not sure if this is what is meant by how much the window weighs. There is nothing written on the coil balance parts.

Thank you, Regina