The Vintage Climatrol THT-1-20000 Two Stage Cool Thermostat is a reliable HVAC and refrigeration device made in the United States by Climatrol. With a manufacturer warranty of 3 years, this thermostat offers a two-stage cooling system that provides efficient and consistent temperature control. Specifically designed for use in HVAC and refrigeration systems, this thermostat is a durable and quality product that can be trusted to maintain optimal temperatures in various industrial and commercial settings.