New balances, Andersen double hung windows

I need to replace my balances on several of my double hung windows and I am not able to read the product stamp on the original box due to oxidation and paint that has obscured it. They are Anderson windows and I can describe it the balance to you. If you are able to I would appreciate it if you could match the below dimensions to the correct replacement in you product line. The dimensions on the original are 6 5/16" x 2 7/8" x 3/4". The sash weighs 10 lbs. The visible glass measures 32 7/16" by 23 15/16". Thanks Dave