The Tri-Star 310299 2" Dial Knob, Off-Low-250-500 is a precision temperature control component designed for use in commercial cooking and heating equipment. Featuring a 2-inch diameter, this durable knob offers a comfortable grip and easy readability, allowing users to precisely adjust temperature settings from low to 500°F. The clearly marked “Off,” “Low,” “250,” and “500” positions ... https://www.partsfe.co.uk/tri-star-310299-2-dial-knob