photos of locking part I will need

A quick learner says:

This is a part that I need for a customer (Stermer) It is the mortise lock for a patio door?

Thank you

Robert 

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Casey from SWISCO responded:

Hi Robert, 

I would recommend starting by comparing the dimensions shown on the 82-223 product page to the mortise lock that your customer is replacing. Thanks for posting! 

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