Sliding glass door handle replacement

Yes, I am needing help finding a replacement handle for my rear sliding glass door in my house. It appears that the hardware internally is fine, but I need the outside handle and possibly the inside handle replaced as well. The outside handle pulled away from the screw housing from over the years with hot and cold weather and just became brittle. Looking at the door from the inside to the outside, you have to pull on the handle from right to left to open it, if that tells you the handle position. It looks like it is not quite 4 inches (possibly 3' 15/16ths) with the screw distance from top to bottom. I attached a photo for you to see this. Please help if you can with the replacement parts. Thank you!

Sincerely,
Reese