25 4 BO Caldwell window sash

Question

Looking to buy 2. Product is 26" long excluding the plastic parts.

Bob · Accepted Answer

Thanks for posting. This looks like it might be an S380-26 or S385-26. See the diagram below. Measure your balance's shoe depth to see what matches best. For a stamp choose 2540.

Comparison of the S378, S380 and S385 balance shoes.