PolyScience CHEF Series Sous Vide Commercial Immersion Circulator The CHEF Series Commercial Immersion Circulator is the leading sous vide cooking device used by the worlds best chefs Large, back-lit LCD screen displays set & actual temperatures Circulates and heats up to 30L bath volume (8 gallons) 1100 watt heater  0.07 stability Award-winning design delivers outstanding results under the toughest conditions and demands