MC Enterprise 91365MC Aftermarket Dometic Water Heater Control Circuit Board KitThis is a replacement circuit board for your Atwood Combination Water Heater. This board sends a signal to your spark probe in order to ignite the propane to heat your water heater. It also sends a singal to the element on your water heater for 120V AC Electric heating.Additional InfoDimensions4-1/4″ x 3-3/8″Mounting Hole Distance4-7/8″ Center Hole to HoleCompatible withGCH6A-10E, GC6AA-10E, GC10A-4E, GCH10A-4E, WH6GEA, WH10GEA, WH16GEA, WH9GEAReplacement forDometic Atwood Board 93851