Sash Balance

Hi Andy, thanks for writing in. There are a couple of things I'd like to confirm before recommending anything. 

First, can you please confirm the length of the metal channel? When determining this dimension, disregard the plastic attachments and measure only the metal channel.

Next, can you tell me the weight of your window sash? Usually the stamp that you show would indicate this, but I'm afraid we're not familiar with this one.

Finally, we need to confirm those plastic attachments. It looks like you could have either our Series 380 or Series 385. The difference between the Series 380 and the Series 385 lies in the depth of the shoe. Take a look at the picture below for more detail. 

Comparison of the S378, S380 and S385 balance shoes.

Hi Andy, thanks for getting back to me with all of that information.

I apologize for the confusion. I actually need the weight of the window itself. Balances are calibrated to offset the weight of the window, so this is a crucial detail in obtaining the correct part.

Hey there! Julia's not in today, but I can help. Since you have an S385-25 with a 24 pound sash, you can use the 2440 stamp option. This carries 19 through 24 pounds and should work perfectly fine.