Need Replacement model /number

Question

Hi, I need to Replace my Anderson window sach balances it has a number of D35 7#31 4 85. Measurement are Full length including tab of 6 3/4 With 3" thickness of 3/4".
What current replacement model number do I Need to buy?

thanks
Bob

User submitted photos of a window balance.

Tom · Accepted Answer

Hey Bob. Check out our 24-737. This can replace Andersen balance boxes with the stamp 7#31.