New Suburban Sw6De 6 Gallon Dsi Electric Ignition/Lp Lp And Gas Rv Motorhome Trailer Water Heater Suburban water heater sw6de 6 gallons Lp gas/electric Cut out dimensions: 12.75" wide x 12.75" high x 19 3/16" deep 12,000 btu heat gas and 1440 watt electric