Replacement spring unit for windows

Question

There is a stamp on the side of the old one:
28 3 EW CMC 4
which one do I need?

Emily · Accepted Answer

Hi there!

Thank you for reaching out to us. Your balance looks like a match for the S395-29 with the 2830 stamp option. This comes fully assembled with the 19-005 top and 15-001 (1-1/8" deep) bottom fittings. Take a look and let us know if you have any questions.