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Open box this was a customer return. Has light signs of usage and is in excellent condition
Wide Application】GL-235 controller handles all systems using energy freely provided by nature for solar pool heating systems. Designed for swimming pools, spas, hot tubs heating and cooling, 12/24VAC and 120/240VAC output. A variety of installer programmable features are available to adapt to any system.
【Set & Maintain Ideal Water Temperature】Pool temperature controllers allow you to set and maintain your ideal water temperature without using a pool heater. Single-setting adjustment allows users to easily select their desired temperature and high limit (from 75°F to 104°F). Quick, easy, user-friendly operation will help pool owners maximize system functionality.
【Automatic Heating & Cooling】GL-235 controller features an automatic mode that easily monitors and adjusts the pool temperature, automatically determining whether the water should be heated or cooled with solar energy, ensuring that the pool is at a comfortable temperature. Recirculation freeze protection prevents water from freezing and damaging the solar control system.
