need to replace left dual arm casement window operator

Question

Hi -- I need to replace the dual arm casement window operator shown above. In looking on your site, I'm thinking I need part 39-341 plus the hand crank 39-205. Can you please let me know if I got that right? Thanks very much.

Bob · Accepted Answer

A good guess, as that operator is very, very similar. However, I believe you actually need either the 39-253LB or 39-438B. The difference between these two operators is explained in the video below. In either case, you can use the 39-375 or 39-451 as a new cover & handle, depending on which style you prefer.