Exterior Sliding Glass Door Handle - Florida Room

I am trying to find a door handle that will attach to the inside of my florida room door. We have full size doors/windows that enclose the entire room. The handles are all missing. They have an inside glass door and an exterior screen door, we only need the handles for the inside glass door. They don't need to be exact and I can redrill holes as needed but they should lock together for safety purposes. We would prefer white or black if possible.