Window balance springs

Question

Hi I'm trying to find replacement spring for 3 different windows. I tried to get picture of each of the stamps on the spring.

Tom · Accepted Answer

Hello! We may very well have a balance that can replace these, but before I recommend anything I would like to see a photo of the top nylon fitting. You only have the bottom fitting in your photos, but seeing both is necessary.

Please also confirm that all three balances are identical, other than size and stamp. If the nylon fittings or configuration differs in any way, we'll need to see how.