Specifications include, but are not limited to: Deluxe Thermocure Portable Curing Box or INDOT approved alternate; Meets AASHTO M 201, R 39, T 23, and ASTM C 511, C 192, C 31; Unit can store up to 22 - 6 inch x 12 inch concrete cylinders; Includes a recirculating heating and cooling temperature control unit that maintains internal water temperature of 73 degrees plus/minus 3 degrees Fahrenheit; Control include temperature set buttons, digital water temperature readout (degree F or degree C), and indicator lights to show when heating or cooling models are on.; Insulated, rustproof boxes with removable galvanized racks for easy cleaning and adjustment.; Minimum Inside Dimensions: 56 inches wide, 17 inches depth, 18 inches height