NA7LX NA8LX NA10LX Energy-efficient operation Designed for the rigors of the road Positive-locking door handles Automatic frost limiting Adjustable thermostat Ultra-thin, high-tech insulation AC, DC, or LP gas operation Polar DC/ 12 V Series - 10 and 8 cu. ft. Compressor Refrigerators 2 Items Polar Series - 7, 8 & 10 cu. ft. RV Refrigerators 3 Items Large 4-door RV Refrigerators 12 & 18 cu. ft. gas absorption 2 Items Large 2-door RV Refrigerators 7,8 & 10 cu.ft. gas absorption 3 Items AC/DC Refrigerators 7 Items Compact RV Refrigerators 3 cu. ft. to 5.5 cu. ft. 9 Items Portable Refrigerators/ Freezers 3 Items AC/DC Conversion Kit 1 Item