I have 2 different lengths. One set of windows carries a 9 inch arm and the other set carries a 13 1/2 inch arm. I'll need some RH as well as LH Thanks.
Dave Sr. from SWISCO responded:
April 13, 2016
Thanks for posting. 13-1/2" operator arms, see our 39-013 and 39-014. For the 9-1/2" arms, see our 39-027E and 39-028E instead. If you also need new handles, consider our 39-114L or the folding 39-205.