looking at your - 33" SERIES 751 CHANNEL BALANCE to replace single hung wood window. my actual length is 33 1/2" with the attached shoe on the end.(photo attached) - I belive that the shoe on mine is your number 15-197 - will also need matching cams-pivot bars as well belive your number is 26-150- - along with s-clips
debth of channel is 5/8" and width is 9/16" -
will need four in total of the above.
also need sweep locks for windows - photos attached - not sure if you have these or not
Thanks in advacnce for your help