Window Balancer with 28 3 CO Caldwell stamped on it

Hey, Larry, thanks for posting! Can you confirm the length of the metal channel? You were right to exclude the plastic ends, but based on your stamp it should be 29" long. If it is 28-3/4" long, it will have to be specially made. If that's the case, let me know how many you need and we can work from there.

If it is 29" long, see our S390-29. I believe this will be a good match.