Balancers help

Question

Help identify old balancers with no markings. It is for non tilt window 34 long metal part. I will have to weigh the sash to choose the strenght

Bob · Accepted Answer

Hey there. Looks like this might be either an S378-34 or S380-34 Channel Balance, depending on the shoe depth. See below. For the stamp, be sure to get as accurate a weight reading as possible. Let us know what the exact weight is before proceeding.

Comparison of the S378, S380 and S385 balance shoes.