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Active Aqua Chiller 1/4 HP


  • Ideal to keep hydroponic solution in your reservoir at the perfect temperature
  • Microcomputer control system and LCD display
  • User friendly
  • Large refrigeration capacity (recommended 26-80 gal, 100-300L)
  • Freon free, environmentally friendly (R134a)
  • Temperature memory system
  • 17.6"L x 13"W x 17.3"H
  • Use AAPW250 for lowest temperature range
  • Use AAPW550 for higher temperature range
  • Capable of chilling approximately 80 gal by 15 F and 26 gal by 30 F (in 20 hrs)
  • Tubing size: 1/2" (HGTB50), 3/4" (HGTB75)


  • Model: AACH25
  • Shipping Weight: 38.4lbs
  • Brand: Active Aqua
Q: What should the temperature of the nutrient solution in my reservoir be?
A: Nutrient solution is best maintained between 65 and 70 degrees Farenheit for optimal conditions. Water chiller units (item#AACH) are available to maintain specific control if needed.

Q: Why is my Active Aqua Chiller not cooling the stated amount of water on the box?
A: The Active Aqua Chillers are rated for the amount of water as dictated on the box without the consideration of grow room elements like multiple grow lights and large pumps that obstruct the effectiveness of operation. For optimal results it is best to use a larger chiller than a smaller one with less water than more.
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