Check the listing for details. Cornelius 620313291 Pressure Switch, Syrup. Condition: New. Listed at 59.99 USD. The Cornelius 620313291 Pressure Switch is a crucial component for commercial cold and frozen beverage dispensers, specifically designed for use in frozen drink and slush machines. This pressure switch ensures consistent and reliable dispensing of syrup from the machine, maintaining the desired pressure for optimal performance. Perfect for restaurant and food service establishments, this product is a key part of maintaining a smooth and efficient beverage dispensing process.