What lock do I need?

A handy person from Covington, LA says:
How do I decide which keyed lock I need for my sliding glass door: 82-303 or 82-310 ? The handle looks like your 82-306?
Thanks

John
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Tom from SWISCO responded:
Hey, John. If your handle is like our 82-306 , then our 82-310 might be the better choice. The 82-310 is the cylinder used in the 82-306 .
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