Sliding door handle set

A quick learner from Florida says:
September 15, 2021
We recently bought a house with a large sliding glass door leading to the patio. It had an after market handle on it when moved in and it promptly broke. We've replaced now a couple of times with cheap lowe's brand but they break quickly. The existing handle has 6 9/16 screw spacing. I can't find a label to identify the maker. Found part 82- 078 which looks like it might work, but latch arm looks like it needs a matching mechanism. Is this true?
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Emily from SWISCO responded:
September 21, 2021

Hi there!

I'm not too sure what you mean by "matching mechanism". If you're referring to the mortise lock and/or keeper for the 82-078 handle set, I'm afraid that both of those parts have been discontinued for quite some time. I apologize for any inconvenience. 
Surface Mount Sliding Door Handle Assembly, 4-15/16"
Surface Mount Sliding Door Handle Assembly, 4-15/16"
82-005
$27.90
Sliding Door Handle Set, 6-9/16"
Sliding Door Handle Set, 6-9/16"
82-078
$67.87
Reversing the thumb lock on the Swisco 82-005 Sliding Door Handle
Reversing the thumb lock on the Swisco 82-005 Sliding Door Handle
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How to Replace a Surface Mount Handle Assembly
How to Replace a Surface Mount Handle Assembly
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How to maintain a sliding glass door
How to maintain a sliding glass door
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