Patio door latch level

The stem of your thumb lever closely matches our 82-240, however I'm concerned that ours may still not be compatible with your handle set. The 82-240 is designed to work with our 82-080 set which is functionally similar to your original, but stylistically different enough to make me hesitate.

Either way, the 82-240 does appear to be our best match. I just can't guarantee that it will work in your particular application. Loo kit over and see what you think.