Hi,
I have windows that are 30 years old. I'm looking to replace the channel balances in one of my windows. The balances that I have are stamped 2830 A. I found a balance on your site, 28" SERIES 770 BALANCE - 28B, that's close but not identical. My balances have a 13 1/4 inch spring on the top part and the pulley assembly on the bottom part. The width and height is approx. 1/2 inch.
Would I run into to any problems using the 770 28B series of balance?
Thanks for your help,
Dave