DEEP IMMERSION 6 - 9 LB. WAX CAPACITY - up to 25% deeper than previous models * ANODIZED ALUMINUM TANK - lightweight, durable, and energy efficient * ALWAYS SAFE TEMPERATURE RANGE - even during the initial melt cycle! * INTEGRATED HANDLES - ease transport in the home, clinic or office * 110V (Model TB6) and 220V (Model TB7) OPTIONS