Sliding door lock mechanism

A quick learner from California says:
I'm looking for the locking mechanism to this sliding backyard door. Would you be able to help me find this piece?
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Casey from SWISCO responded:

Hello,

Take a look and compare the dimensions of the 82-218 to your mortise lock. If you had a faceplate that is missing, see the 82-226 and make sure that the installation hole spacing matches your doors. 

As for the handle, take a look and see if the 82-030 with 3-15/16" installation holes will work for your repair. Thanks for posting!

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