18 Gallon Round Sensor Trash Can is touch-free with sensor-operated lid and extra-large so it's perfect for high-traffic venues like restaurants, lobbies and stores. Touch-free, sensor-operated lid eliminates exposure to the illness-causing bacteria that lives on trash can surfaces. Trash can includes four caster wheels for mobility and a replaceable, activated carbon odor filter. This Odor Control System with AbsorbX technology absorbs odors from rotting food and household waste as well as volatile organic compounds (VOCs) that are common, naturally occurring chemicals that can cause illness. Wide opening accommodates large and bulky items. Elegant, brushed stainless steel finish is smudge-resistant, easy to clean and complements any decor. Bin liner retainer ring keeps liner in place and out of view. Air vents at the base make trash bag removal effortless. Trash can is powered by four D batteries (not included) or official HLS Commercial AC Adapter (not included).