Source For Assa Effeff Locks In USA?

I have a client who need exterior access to a locked sliding glass door.  I know it's not a great idea, and I've already had him sign the bad idea form, but he really wants a solution.  I drew up a maglock design that will work, but it's ugly.  I found this latch from effeff: https://secure.effeff.de/index.php?key=produktkatalog&lang=en&c=effeff&ID=158202 but I can't find a place to buy it in the US.  Anyone know where to procure or if anyone else has anything similar?  Thanks!

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