Knob for old sliding glass door

A handy person from Orlando, Florida says:
June 15, 2011
Please let me know if you can locate the part circled in the attached images!

Thank you for your time,
Erik T.
User submitted photo of sliding glass door knob.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
June 15, 2011
Good afternoon, Erik.

It appears you have an old Keller/Air Control patio glass door; that company has gone out of business and the lock is no longer manufactured. With that being said, there is no exact replacement for this lock. What normally breaks on the lock is the interior mortise latch, not the outside turn handle. Here's how to check: remove the handle and try turning the inside mortise lock with a screw driver to see if the latch will lock.

Personally, what I have done in the past as far as replacing the lock was to use the 82-005 Surface Mounted Lock.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.