Channel Balance stamped 26 4 KP Caldwell
A handy person from Santa Cruz says:
March 17, 2012
This is for non-tilt Milgard windows the channel is 27" long without the ends
Paul from SWISCO responded:
March 19, 2012
Thanks for posting. Please take a look at our S385-27 channel balance with a 2640 stamp option.
Also be sure to check out our video tutorial on how to install your channel balance: