33" Tilt channel window, stamped Caldwell 32 4 KR

Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385.

Now, as you can see, the only difference between these two Series is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.

Are you sure this is a tilt window? That does not look like a tilt window channel balance. See the video below for clarification on what kind of window we think you have. If yours works differently, we will need clearer pictures in order to find a better match.