Window Balance
Hey there!
Thanks for reaching out to us. We're happy to look into this. The stamp shown here isn't a part number or an identifier so we'll need more information. Can you show us close up photos of the top and bottom fittings? Can you also show us a photo of the inside of the metal channel where the innerspring connects to the pulley mechanism? That'd be located in the middle of the channel.
Thank you for waiting while we looked into this. We can help supply replacements for this balance but they aren't a stock part of our catalog so this must be a custom order. Our parts will look different from what you show here but we're confident they'll work.
With that said, I'm going to email you a purchase link and price quote for (2) of these balances that you can use to place an order on our website. Please note that there is a 5-6 week lead time as well.