Need Anderson Balance Replacement

Hi, I could not find a direct part # match for a balancer, hoping you can help.

Numbers engraved on balancer are:

• C20 6/23 785

Appears to be Anderson 200 Series Narrowline Double-Hung Window, more than 25 years old.

Glass etching:

• Anderson
• 7 A W 85/0
• X1

Window sash visible glass dimensions:

• Width = 32 3/8"
• Height = 15 7/8"

Regards,

Tom