Do you sell a retrofit for this sliding patio door handle?

Hello, Memo. One option that comes to mind that comes close to what you want is our 82-005. This works in more or less the same way as your original handle, but the hole spacing for both the handle and keeper are likely going to be different. That means you're looking at drilling new holes to mount everything, but that's about it. As long as you have room on the door for the handle and room on the side for the keeper, you should be able to get this to work.