Suitable for a variety of commercial and consumer heating apps, the company’s hot capillary thermostats are available in manual or automatic reset models and in a wide selection of preset temperature ranges and differentials. Temperature ranges from 0°C to 400°C and differentials range from 1.5°C ±1°C to 9°C ±4°C. Liquid within the thermostat bulb expands as the temperature rises, transmitting pressure through the capillary tube to an expandable diaphragm. When a set point is reached, an electrical switch is activated, shutting off the current. Typical pricing is $10 each in OEM. SELCO PRODUCTS, Reno, NV. (800) 257-3526.