The Frigidaire 316220009 Gas Surface Unit Knob-Black provides reliable control over burner heat settings for safe and efficient cooking. Designed for compatible gas ranges, this replacement knob connects to the burner control shaft and allows users to adjust flame intensity with smooth rotation. It works by engaging the control mechanism to regulate gas flow to the surface burner, supporting accurate temperature control during meal preparation. The durable construction is made to handle regular kitchen use, while the black finish helps maintain the appliance’s original appearance. Ideal for replacing cracked or worn knobs, this component helps restore proper burner operation, improves user convenience, and supports consistent cooking performance in everyday use.