Product Code: 39-280 looks like it would work for my windows except the arm with the 2&1/2" measurement needs to be 1&7/8, all the others match up,any help? Thanks
Tom from SWISCO responded:
June 12, 2018
I'm afraid we haven't been able to find a replacement for the 39-280 with an arm that small. The 39-280 may still work, though; the linkage in these windows tend to be very forgiving. You may have enough play to get it to work.