Upgrade to 12 gallons of hot water for the same cut-out dimension as the 10 gallon. Has all the same features as the 10 gallon with just two more inches of depth. Measures 16-7/32" W x 16-7/32" H x 22-1/4" D. Cut-out size: 16-3/8" W x 16-3/8" H. Doors sold separately. (Remote Switch sold separately). 12,000 BTU. Model Name Breakdown: SW-Suburban Water Heater. 12- 12 Gallon. D- 12 Volt DC Direct Spark Ignition Gas Heating System. E- 120 Volt AC Heating Element. L- 12 Volt Relay for Interior Operation of Electric Heating System.