A quick learner from Saint Louis County, Missouri says:
January 16, 2023
Locking door mechanism needs to be replaced on existing patio door handle assembly. Can you recommend the parts or assemblies that I will need for this application
Emily from SWISCO responded:
January 18, 2023
Hello there! Your handle appears to be a match for our 82-089, or 82-086 if you wanted the keyed version. Take a look and let us know if you have any questions.