Casey from SWISCO responded:
April 17, 2023
Hello, I would recommend starting by comparing the specifications of the 82-218 mortise lock to your door's specifications. As for the keeper, you can start by comparing the dimensions of the 89-041 or 89-029 to yours. We'll include the images from our product pages below. Thanks for posting! Profile view of 82-218
Opposite side view 82-218
Dimensions for 89-041
Alternate image for 89-029
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