I'm trying to replace a window balance. I'm wondering if I should replace 1 or both balances because they are the same age and one of them has a weak spring. (If it's inexpensive, maybe I will just go ahead and get both but would appreciate any advice).
I'm not sure what kind of balance but I uploaded 4 photos. The balances say 23 3 JP Caldwell on the side. Let me know please if I should provide any other information.
Thanks!
Molly
p.s. I am having trouble uploading photos so I will send a few different posts. Thanks!

