Mortise latch for Pella sliding patio door

A handy person from Oklahoma says:
I have been unable to find a match for this lock/latch for a Pella sliding patio door, and would greatly appreciated any assistance
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Lauren from SWISCO responded:

Hello, thank you for posting,

Please start by reviewing the style of the 82-247 Pella locking mechanism. Compare the dimensions to your original to confirm a good fit! Let us know what you think and if you have any additional questions. 

Alternate image for 82-247
Alternate image for 82-247

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