The Franklin Machine Products 168-1391 Solid State Controller Knob is a precision-engineered component designed to meet the demands of various industrial applications. Featuring a .25"D-stem, this knob is tailored for seamless integration with compatible control systems, offering precise control in both commercial and industrial settings. Its solid-state design ensures durability and reliability, making it a preferred choice for professionals seeking long-lasting performance. Crafted to cater to a wide array of market segments, including manufacturing, food service, and HVAC industries, the 168-1391 knob facilitates efficient operation of machinery and equipment. The compact .25" diameter stem is a key feature, enabling easy installation and compatibility with a range of devices. This controller knob exemplifies Franklin Machine Products' commitment to quality and innovation, providing users with a dependable solution for their control needs. Its versatile application and robust construction make it an invaluable tool for enhancing operational efficiency and maintaining consistent performance across various industry sectors.