Window balancers

Question

The code on the old balancer is 2305. I did not see it on the chart. My sash is about 50 x 24 single pane. Do you have a recommendation for a 24" series 378? attached a photo.
Thanks,
Hugh

Bob · Accepted Answer

Hey Hugh. Just to clarify, be certain that the balances you have are in fact the Series 378. Those stamps are not identiifers--they just designate the balance's strength and are used by many different balance Series. See the top fitting, as well as the depth of the bottom nylon shoe, below. If anything is off, please show how and send photos.

Close up view of the S378 balance top

Comparison of the S378, S380 and S385 balance shoes.

For the balance stamped 2305, the best thing to do would be to weigh the window sash the balances support. You can use that exact weight to find the right stamp option. For a 18" balance stamped 1740, you can choose 1740 as the new stamp option.