Series 380 Window Balance?

Question

Hello. It looks like I need a couple Series 380 15" #1410Can you confirm with the attached photos? The metal channel is 15" long. The Stamp indicates 14 3, which I believe is 3 LBS, but the 15 only comes in 4-6#Please advise. Thanks!
Joel

Jasmine · Accepted Answer

Hi Joel,

This window balance could very likely be the S380-15 but you'll need to be sure to double check the depth of the shoe to be sure. Take a look at the diagram below for reference.

Comparison of the S378, S380 and S385 balance shoes.

The 3 in the stamp would not indicate the sash weight. That number represents the weight range the balances can support. Since your stamp differs from ours, it may possibly support a slightly different range. Ultimately, you'll need to weigh the sash to confirm its weight.

Our 1430 stamp will support a sash weighing 10 to 12lbs.