Maintain precise defrost control in your refrigeration system with this Defrost Thermostat L120-50F, a direct replacement for Hoshizaki part numbers 31941 and 37T21. This thermostat opens at 120F and closes at 70F, making it ideal for preventing frost buildup and ensuring efficient operation in a wide range of Hoshizaki commercial refrigeration models. Key Features Replaces Hoshizaki 31941 / 37T21 Temperature rated at L120-50F (opens at 120F, closes at 70F) Controls defrost cycle to prevent ice buildup Ensures efficient cooling system operation Durable design for commercial refrigeration environments Specifications Temperature Rating: L120-50F Opening Temperature: 120F Closing Temperature: 70F Part Numbers: 31941, 37T21 Function: Defrost limit thermostat Application: Refrigeration systems Compatible Models Fits over 153 models, including: DT2A-FS F1A-FG F1A-FS Why Choose This Item Designed for OEM performance, this thermostat ensures your system defrosts only when necessary, reducing energy waste and preventing evaporator coil freeze-ups. It?s a cost-effective solution to maintain the performance and longevity of your Hoshizaki refrigeration equipment.