Need 2 26-3 27" long without plastic 1/2 inch wide tilt says BSI AND 3 26-4 non tilt 1/2" wide

Thanks for reaching out! I am confident we can supply you with the replacement balances needed to repair you windows. Although, I'll need to see a clearer photo of the bottom shoe attachment to confirm the best possible replacement.

The stamps from the balances only indicate the weight range the balance should be able to carry to support the weight of the sash. It does not help to identify the exact balance needed, unfortunately.

Please let me know if you have any questions.