Deep immersion 6 to 9lb wax capacity is up to 25 percent deeper than previous models Anodized aluminum tank is lightweight, durable, and energy efficient Maintains an always safe temperature range even during the initial melt cycle Integrated handles allow for easy transport All Therabath products are shipped with the Authentic Therabath Product Seal along with the products Batch ID Number A form of thermotherapy, paraffin effectively aids in rehabilitation, or to warm an area of the body prior to other therapies or exercise.