looking for replacement patio door handle and locking mechanism

Hello! We don't sell this exact handle set, but our 82-030 will work just as well despite the difference in style. Look it over and see what you think.

We have two other handle sets that may work. The first is our 82-035 , though this has a wood handle. You said you needed it to be white so I'm not sure if that would be a deal breaker for you. If not, it should work perfectly fine as a replacement.

The second is our 82-089 . However, it's important to note that the thumb lever on this handle is fixed in the bottom position and cannot be adjusted. I cannot tell from your photos if your thumb lever has the same position, but if it's centered then this will not work.