Professional-grade paraffin bath is the industry standard and the only lifetime guaranteed unit available. Fully insulated, this heavy-duty bath is energy efficient for low-cost operation, with thermostatic control to maintain a medically-prescribed temperature. The large inner tank fits hands, feet, and elbows, yet the compact outer case requires little counter space (14-3/8" x 8" x 7-3/4"). CUL listed.