Ideal for Relief of Pain and Stiffness Due to Arthritis or Injury. Unit Provides Comfortable, Moist Heat. Great for Therap Clinics, Rehabilitation Offices and Home. Features Include a Safety Switch Which Prevents Overheating. Stainless Steel Tank, Thermostat, Hospital Grade Plug and Cover, UL Listed and CSA Approved. Use Parabath Paraffin Only. Tank Measures 12" x 6" x 6"