lock for a Atrium sliding glass door

Thanks for your post! The mortise lock you have here can be replaced with the 82-218 Mortise Lock. We do not have an exact match for the keeper but this mortise lock is frequently 89-021D Diecast Keeper. Since the body has a similar shape, I am confident it should work for your repairs.

Take a look over each of their dimensions to confirm that these are the correct replacements.

Profile view of 82-218

Opposite side view 82-218

Alternate image for 89-021D