Feature: 1. 2 In 1 Design: This hydroponic water chiller adopts 2 in 1 design, cooling in summer, heating in winter, automatic constant temperature, one machine is multi purpose to meet your different breeding needs. 2. R134A Refrigerant: This hydroponic system water chiller adopts R134A refrigerant, faster cooling speed, non polluting circulating cooling, with high efficiency and environment friendly. 3. Excellent Cooling Efficiency: This fish tank hydroponics cooling system has 1 built in silent fan and a porous design that ensures excellent cooling efficiency without disrupting your daily life. 4. Internal Pure Copper Evaporator: This aquarium chiller features an internal pure copper evaporator that ensures effective erosion resistance while enabling the most efficient heat exchange. Whether it's fresh or salt water, the fish tank water cooler is perfectly suited to meet your sensitive temperature needs. 5. Easy To Operate: This fish tank chiller uses the easiest to understand push button to set the temperature, with an adjustable temperature range of 10‑50°C/50‑122°F, making it very easy to operate. Specification: Item Type: Water Chiller Material: Alloy Steel Horsepower: 1/4 HP Cooling Water Capacity: 60L / 16 Gal Temperature Setting Range: 10-50°C Applicable Water Pipe: Inner Diameter 8mm/0.31in Water Pipe Applicable Water Flow Rate: 1-3L/min Applicable Lift: Below 3m . Package List: 1 x Water Chiller 1 x Power Cord 1 x Manual Note: 1. Handle with care during transportation, installation, maintenance, etc. 2. Maintain a distance of at least 10cm between the machine and surrounding space to allow airflow circulation for heat dissipation.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.