Stamp option/sash weight

Question

My sash balance is a 27" 385 I'm pretty sure, but the old one has the following info stamped on the side; 26-4 EA2 CMC 12.

Is the 26-4 referring to a 2440?

Thanks

Casey · Accepted Answer

Hello,

If you're sure that you have an S385 channel balance then you would need to order the S385-27 with a 2640 spring strength option. Thank you!