The AllPoints Foodservice Parts & Supplies 8009519 Thermostat Knob is designed for reliable performance in commercial fryers. With a diameter of 2-1/4 inches and a 3/16-inch D-stem flat down configuration, this knob allows for precise temperature control ranging from 400 to 200 degrees Fahrenheit (200 to 100 degrees Celsius). It is compatible with a wide range of Pitco and Frymaster fryer models, ensuring versatility and ease of replacement. This durable knob is essential for maintaining optimal cooking conditions, enhancing the efficiency and safety of your food preparation equipment.