Need new lock

A home owner from Madison va says:
Need new lock for sliding glass door
Thumbnail of the uploaded file named 15800716644441583562825280442863.jpg
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Bob from SWISCO responded:

Thanks for posting. It's a bit difficult to say from this picture what exactly you need. It's possible our 82-315 lock might work for you, but you'll have to compare to see. If not, let us see a clearer picture of this lock as well as the handle set it interacts with. Many thanks.

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