SpectraCool Advanced Corrosion Protection ACs utilize advanced coatings extending life of unit. This SpectraCool Advanced Corrosion Protection Lvl 1 with RAC, G280616G360 item is rated 6000BTU 115V with material of Steel color Lt Gray. Features: Attractive industrial design with minimal use of visible fasteners; Level 1 Protection Includes: Protective coatings only applied to copper tubing and coils on the condenser (exterior facing) side as well as thermostat coatings; Energy-efficient rotary compressor on most models; Level 2 Protection Include: Everything that was coated in Level 1, plus protective coatings applied to the evaporator (interior facing ) side and an additional wrap around the thermostat; Cleanable, reusable aluminum mesh filter included to protect coils for maximum cooling performance in dirty environments; R407C, R513A or R134a refrigerants; 115, 230 and 400/460 VAC 3-phase power input on most models; Reliable mechanical thermostat on enclosure side of the unit; All G-series come standard with two separate thermostats for cooling and heating when a heater is equipped; Operating temperature range from -40 F/-40 C to 131 F/55 C; Dust-resistant condenser coil allows the unit to be run filterless in most indoor applications; Dual condenser-side air movers for performance redundancy on G52 and G57 models; Galvanized or stainless steel cover for rugged factory and outdoor environments; Exterior and partially recessed mounting options; Galvanized sheet-metal cover for rugged factory and outdoor environments