I recently moved into a house and all the windows balances do not work and/or are missing. The owners chose to give us a credit instead of fixing them. I have attached the pictures to show what I have, they seem to be the original to the house, which was built in 2004. The only marking I can find on the balance is marked with "28B USB" I'm hoping you can help me identify what part(s) I need. The majority of my windows are 35 x 60 and I have 11 of those windows. I also have one window that is 50 x 60. Thank you in advance for your assistance.
Sincerely,
Scott