patio sliding door lock

A quick learner from Bloomfield Hills, MI says:
I need to convert the current installed door latch to a lockable one with a key. Current installed one has marking "GLW". The frame is vinyl. If possible I will only want to install a lock barrel to keep cost as low as possible. I intend to do this by myself. Pl suggest a solution.
Patio handle
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I'm afraid that your GLW handle is no longer available, and I'm sure what could work with it. It's possible that you could get our 82-310 to work, however I don't know if the outside handle can accommodate it. Check the outside handle to see if it has a cut our knock-out hole to accept something like the 82-310 .
How to Install a Key Lock on a Patio Door
How to Install a Key Lock on a Patio Door
VIDEO
WATCH >
How to maintain a sliding glass door
How to maintain a sliding glass door
GUIDE
READ >
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 (888) 991-1929 or at help@swisco.com.