Dry heat wells feature individual temperature control to hold each dish at its proper safe temperature Even concentration of heat and insulated wells maintain serving temperatures 7 qt. soup warmer holds temperature at the recommended 140 degree F (60 degree C). Stainless steel construction increases durability, and is easy to clean and sanitize 4 ea. 5" all swivel casters, 2 with brakes, for easy maneuverability Model 6750 features additional storage space with 3 sets of adjustable universal ledges to hold extra pans and other food items Heat wells are 12" x 20" x 6" deep to conveniently fit standard roasting pans*