Block & Tackle balancers

Thanks for posting! These balances have winged top and bottom attachments like the S378-28, S380-28, or the S385-28. To determine the correct replacement, you'll need to measure the depth of the bottom shoe.

Comparison of the S378, S380 and S385 balance shoes.

The stamp on the balance is a 2760 which will support a sash weighing 30 to 33lbs. A 2765 stamp will support a sash weighing 33 to 36lbs. 

You'll need to confirm the exact weight of the sash to determine the best option for the repair. While there is only a slight difference between the ranges, it will matter in the installation.