The ROYAL RANGE 4421 oven thermostat with bypass adjustment is designed to deliver accurate heat control and consistent cooking performance in commercial kitchens. Featuring a temperature-sensitive bulb measuring 3/16" x 11-3/16" with a 48-inch capillary, the thermostat continuously monitors oven temperature and modulates gas flow up to 500°F. Its integrated bypass adjustment ensures ... https://partsfe.com/4421-royal-range-thermostat-bjwa-316-x-11-316-48