29DS 38 Lawson Window Balance

Question

Need to replace balance in Lawson window stamped with #29DS 38. Just the metal part is 30" long. What part do I need to order?

Thanks, Doug

Tom · Accepted Answer

I'm not sure what you have, unfortunately. There are dozens of different balances with that stamp. It's not a product code or anything, it just indicates the strength of the spring.

In order to figure out what Series this is, I need you to remove an undamaged version of this balance from the window and show me clear pictures of the top and bottom nylon fittings. I will also need to know the dimensions of these fittings.