Feature:1. Quiet Operating: The aquarium chiller utilizes cutting edge technology for silent operating, ensuring minimal disruption while effectively maintaining stable cooling for your aquatic environment.2. Constant Temperature: Equipped with a constant temperature feature, this chiller keeps your fish tank's water temperature consistent, promoting a health environment for your aquatic pets.3. Compact Design: Designed for easy installation, this aquarium water chiller saves space, and is applicable for a 20L fish tank without compromising performance or functionality.4. Energy Efficient: This aquarium cooling machine not only provides high efficiency refrigeration but also reduces energy costs, ensuring long term savings on maintenance and power bills.5. Adjustable Temperature: With adjustable refrigeration effects, this chiller allows you to regulate water temperature according to specific fish species requirements.Specification:Item Type: Aquarium ChillerMaterial: ABS, Silicone, MetalPower: 70-72wFit: 8mm(internal) hoseSuitable Water Flowrate: 1-3L/minSuitable Lifting Height: Less than 3 metersSuitable Fish Tank Size: 20LWater Pump Power: 3wLift: 0.4-1.5mFlow Rate: 200L/HNote: The product's cooling effect is 4-7 degrees lower than the ambient temperature.Package List:1 x Aquarium Chiller1 x Aquarium Chiller Plug1 x Cold Water Machine Adapter1 x Water Pump1 x Water Pump Plug1 x Flexible Hose4 x Fixing Ring1 x Instruction Manual