All refrigerators from Continental have unique features to better serve size, performance and durability requirements. Trouble-free automatic defrost and condensate evaporator eliminate performance-robbing build-up. All models, except under counter units, have an external digital display. All models utilize environmentally safe R134A and R404A refrigerant. Each individual refrigerator is tested prior to shipment; written certification and chart of actual performance is included with each unit. Standard cabinet features stainless steel front surfaces and aluminum end panels and interior - no plastic is used. Extra high density, non-CFC foamed-in-place polyurethane insulation provides maximum protection against external temperature changes. Self-closing doors have cylinder locks for added security. Shelves are heavy duty, epoxy-coated steel. Feature automatic interior lighting and are UL listed. Adjustable six inch legs can be replaced with optional casters for mobility (see 8050C87 series). Accessory chart recorder (8050C81) and Hi/Low alarm (8050C82) must be ordered with refrigerator for factory installation.