I have 7 windows where the counterbalances need to be changed out since the windows will not stay up and having a hard time closing and opening.
The marking on the block and tackel inverted T counterblances have the markings as Unique 27-C-30. It is 28in long the metal channel with one end (bent angle with the rope tied to it) that screws to the top part of the window as noted in the pic. The other end has an inverted T that measures as the pics as 1.25 in wide and the depth is around 7/16 in
Could you please advise which counterbalance would work
Raghu
Thanks
