Secondary security lock for sliding glass door

A quick learner from Indiana says:
Need to know what secondary security lock would fit the bottom of sliding glass door. I believe the door is made by ply gem.

Thanks.
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Bob from SWISCO responded:

You might be able to use the 82-051 or 82-040 Secondary Lock, as well as a keeper like the 82-052, 82-053, or 82-054. Look over the dimensions and see if you think you could get one of these locks and keepers to work for your door. Another possibility though is to use something like our 80-006 Charlie Bar instead. This bar lock is a bit more old school, but you might find it to be the best solution.

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