Window balance

Question

I'm not sure what exactly is this part. It says 25 4 10 Caldwell.
it's 1/2 inch wide and the metal piece is 26 inches

Bob · Accepted Answer

Hey there. This might be either the S380-26 or S385-26 Channel Balance, depending on the depth of the bottom shoe. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option choose 2540.

Comparison of the S378, S380 and S385 balance shoes.