Sunbeam Grill Master Series gas grill, set up to run on a natural gas line connected to the house instead of propane (LP).
If you attach a standard hose and regulator, I believe you can also use it with propane.
This grill features right and left zones, three levels of grates, and a full-size burner.
The H-burner has some corrosion but I repaired it with foil tape and it has worked fine. If you decide to replace the burner, they are easy to find replacement parts.