Atwood G6A-8E RV Water Heater  6 Gallon without Door 6 Gallon Capacity Direct Spark Ignition Input 8,800 BTU Cut Out Dimensions: 16" Wide x 12.5" High x 16 7/8" Deep This Atwood Water Heater Replaces these Atwood Models G6A, G6A1, G6A2, G6A3, G6A6, G6A7, G6A7P, GH6, G610, G6A2E, G6A3E, G6A4E, G6A6E, G6A6P, G6A7E, G6A8E