Active Aqua Chiller Active Aqua Chillers are the Freon-free, environmentally safe way to keep hydroponic solutions at the perfect temperature in your reservoirs. With microcomputer control systems and LCD displays, as well as temperature memory systems included in each unit, these chillers offer maximum utility and durability. Active Aqua chillers are environmentally friendly (they use R134a refrigerant) and are ideal for keeping the nutrient solution in your reservoir at the perfect temperature. Each unit has a user-friendly temperature system that allows you to control your desired temperature range as needed, and all models now have a boost function that accelerates the chilling process for quicker establishment of desired nutrient solution temperature. Chiller Size Reservoir Volume Ideal Use Case Cooling Capacity Active Aqua 1/10 HP 13 to 40 gallons Personal/Small pools Efficient for smaller Active Aqua 1/4 HP 42 to 92 gallons Medium pools Balanced cooling Active Aqua 1/2 HP 92 to 172 gallons Larger pools/groups Faster cooling Active Aqua 1 HP 132 to 396 gallons Commercial/large events Max cooling Features: Large refrigeration capacity Anti-corrosive pure titanium evaporator for both fresh and salt water Fittings Included Convenient microcomputer control system Compressor protection function shuts off the circuit automatically to prevent the motor from burning out when it is overheated Memory backup feature allows the unit to return to the previous setting after the unit experiences an unexpected power outage Boost function accelerates the chilling process with two available options: 2-hour setting chilling and continuous (24 hrs/day, 7 days/week) setting for maximum chilling The available range for user-set temperature is 39°F to 90°F (3°C to 32°C). Environmental Impact Freon-free, environmentally friendly Refrigerant Used R134a Utility Microcomputer control systems, LCD display, Temperature memory system Key Features - Large refrigeration capacity - Anti-corrosive pure titanium evaporator (fresh & salt water compatible) - Fittings included - Microcomputer control system - Compressor protection function - Memory backup feature - Boost function with 2-hour and continuous settings User-Set Temperature Range 39°F to 90°F (3°C to 32°C) Safety Prevents motor burnout during overheating Memory Feature Returns to previous settings after unexpected power outage Additional Information Instructions included Additional Information Instructions - AA Chiller w/Power Boost