6 Gallon Atwood LP Gas Water Heater DSI Gas/Electric Model. Atwood Water Heaters Feature A Patented "Through Tube" Combustion Chamber. Features include a high temperature limit switch, thermostat and pressure relief valve that prevents problems before they happen. A simple flip of the switch from inside your coach  lets you turn your water heater on or off using either the gas or electric mode. Unit Is Lightweight with Dimensions Of 16" Wide X 12.5" High X 18.5" Deep. Inlet And Outlet Are 1/2" FPT. 

Model #GC6AA-10E