It is always important to keep an eye on the temperatures of your nutrient solution. If your hydroponic nutrient solution gets too hot, it can breed algae growth and prevent the solution from holding in dissolved oxygen. This will lead to lower crop yields, or worse, destruction of your crop through root disease such as Pythium. Now with a HAILEA Nutrient Chiller, keeping your hydroponic nutrient solution cool in a hot growroom has never been so easy! You'll be amazed at how well your garden will do with the correct nutrient solution temperatures. The HAILEA HC-150A, HC-300A and HC-500A Water Chillers pump the nutrient solution through a cooling unit, and it keeps the water at your desired temperature, ideal for summer NFT systems. HAILEA HC Chillers are easy-to-use and feature a strong robust metal case with contemporary design. These products require a pump, such as the HAILEA HX-8810 (for the HC-150A Chiller) or the HAILEA HX-8830 (for the HC-300A Chiller). It uses a microcomputer control system for convenience and has a compressor protection device system built to shut off the circuit automatically to prevent the motor from burning out when overloaded. It has an anti-corrosive pure titanium evaporator for fresh and salt water, emits low noise while maintaining the selected temperature and uses environmentally friendly refrigerant R134a.