These r being used on jordan windows approx 34 yr old windows. Balancer used is 1/2 wide- 28in- 4-KJ - Caldwell . Also has # on balancer= 2840 F. Thank U very much !!
Bob from SWISCO responded:
October 12, 2020
Hello there. See our 18-199 Jordan Top Sash Guide, as well as our 18-115 and 18-166. Look over the dimensions and see if one of these guides could work for you.