Wells SS-4D-120 heavy-duty, top-mount, drop-in round food warmer is designed to hold heated foods at safe and fresh serving temperatures. Accommodates standard 4 quart round inset pans, one-piece stainless steel top flange and heavy-gauge, deep-drawn stainless steel warming pans. Temperature-ready indicator lights and powerful tubular heating elements are located under the warming pans for quick and efficient heating and for even heat distribution. High limits prevent overheating, and Wellsloks for quick and easy installation are standard features. Infinite Control, Drain, Non-Insulated, 120V.