Mortise lockset for door with Guardian glass. I have handle
A quick learner from NJ says:
April 12, 2021
The mortise opening is 3" Screw spacing is 3 3/4"
Tom from SWISCO responded:
April 15, 2021
I can't be 100% sure what your mortise is without seeing the original, but looking at the space where it installed there's a good chance you want our 82-218. Look it over and let me know what you think.