Mortise lock replacement for sliding door

A home owner from says:
November 11, 2023
Hoping to get some help on finding the correct replacement part for this mortise lock for my sliding glass door. There are no markings/part numbers etched on the lock, so difficult to confirm. Thanks!
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Bob from SWISCO responded:
November 11, 2023

Thanks for posting. This mortise lock looks like our 82-218. Please compare. If you need a new face plate also, we offer versions of this mortise lock that include it: see our 82-226 or 82-227. The difference between these two mortise locks is the hole spacing on the face plate, so do compare with your old lock if you choose to go this route to ensure you pick the right option. 
A home owner says:
November 11, 2023
Thanks!
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Bob from SWISCO responded:
November 11, 2023

My pleasure. Let us know if you have any other questions, and many thanks for reaching out. 
Mortise Lock, Round Face, 3-11/16"
Mortise Lock, Round Face, 3-11/16"
82-218
$11.70
Mortise Lock, 4-5/8"
Mortise Lock, 4-5/8"
82-226
$13.97
Mortise Lock, 5-3/8"
Mortise Lock, 5-3/8"
82-227
$14.94
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How to install the 82-218 Mortise Lock
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