U-Chill® Beverage Chiller, dry cooling, touch control, optimal ambient temp. range: 50°F - 90°F, near-silent operation, powers off automatically after 4 hours, installs 6 1/8" diameter opening in countertops from 3/16" to 3" thick, brushed stainless steel crown included, new accessory crowns available in: polished stainless, brushed brass,brushed gunmetal, and matte black finishes, plugs into standard 115v/60Hz outlet, AC/DC adapter included