Limited to existing stock -  ( 2 ) Air Control sliding glass doors by Keller are discontinued.

There are some new and used parts available for this door.
This is the Internal Lock, Spring loaded;

Installation screws spaced at 2-3/16 inch
Part is non-handed 
 
Discontinued Item - Used only, No Warranty, Sold as is 
These are limited to existing inventory.

When sold out, replacing part will require complete handle replacement

For complete handle set, see part #14066 or 14070