Bestway 81-by-28-Inch Lay-Z-Spa Premium Series Pool Small-size, inflatable family spa Rapid Heating System increases water temperatures by 2 degrees an hour and enables temperatures to reach 104 degrees F Water filtration system with replaceable water filtration cartridges ; 110-volts, plugs into a standard USA electrical outlet Insulated zipper cover; Leatheroid top with zipper cover; instructional DVD Measures 112-1/2-by-72-by-30-inches