Keep your pet's drinking water ice-free in almost any temperature this winter. This 5-quart (4.75L) Heated Pet Bowl is thermostatically controlled for efficient operation, keeping water free of ice when used within an enclosure and not exposed continually to the outside elements.. It's made from a special, resilient plastic that can flex slightly and prevent cracking in freezing temperatures. The non-tip design prevents spills and messes. Durable 6-foot cord with anti-chew protector. LOCKNDRY compatible. UL Listed. True 5-quart capacity Special resilient plastic to prevent cracking 6' anti-chew cord UL Listed