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Active Aqua Hydroponic Water Chiller w/ Boost Function, 0.25 HP - Adjustable Cooling System for 40-92 Gallon Reservoirs, Pure Titanium Evaporator Cooler for Aquaponics, Cold Plunge Baths & Aquariums

  • Based on 651 reviews
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Availability: 17 left in stock
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Arrives Monday, Mar 2
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Size: 1/4 HP


Features

  • Rapid Cooling with Boost Function: Achieve the perfect temperature faster for your nutrient solutions, aquariums, or cold baths with the exclusive Boost feature of the Active Aqua Chiller
  • Efficient Temperature Control: User-friendly interface of this fish tank chiller gives you full control over the precise temperature range ensuring superior growth and vitality for plants and fish
  • Versatile Applications: This aquarium water chiller is ideal for hydroponic systems, aquaponic reservoirs, and even cold plunge baths with a large refrigeration capacity of 40-92 gallons
  • Reliable Power and Efficiency: Active Aqua 1/4 HP Chiller features a 0.25 HP motor (396-925 gallons per hour); Designed for compatibility with AAPW400, AAPW550, and AAPW800 pumps
  • Built to Last: Engineered with an anti-corrosive pure titanium evaporator for fresh and saltwater environments, offering long-term durability and consistent performance; Pump and hoses are required but NOT included

Description

Want consistent, perfectly chilled water for your hydroponic system, aquarium, or cold plunge bath? The Active Aqua 1/4 HP Water Chiller (AACH25HP) is the solution for all your cooling needs. Its innovative Boost function cools your nutrient solution or water quickly, ensuring faster results. Whether you're optimizing your hydroponic setup or creating the perfect aquatic environment, Active Aqua Water Chillers provide the rapid cooling power you need. Designed for versatility, this model handles everything and can be used as a hydroponic water chiller, aquaponic water chiller, aquarium chiller, or a cold plunge chiller. It supports setups between 40 to 92 gallons, ensuring precise temperature control for optimal plant growth or aquatic health. With the easy- to-use control system of this water chiller 1/4 hp, you can customize your cooling experience, whether promoting plant growth or enhancing your cold bath therapy. Durability is key with the AACH25HP water chiller for cold plunge baths, featuring an anti-corrosive pure titanium evaporator, suitable for both fresh and saltwater. This cold plunge water chiller includes 0.5-inch and 0.75-inch fittings for easy installation and compatibility with AAPW400, AAPW550, and AAPW800 pumps. Rated at 3,010 BTU per hour with 460 watts of power, this cold plunge chiller machine delivers efficient cooling while conserving energy. The pump and hoses are required for operation but not included. Compact yet powerful, this chiller for fish tank measures 20.7 L x 17.9 W x 20.5 H inches and weighs 50 pounds. Keep your plants, fish, or cold therapy at the perfect temperature with the Active Aqua Chiller 1/4HP, backed by a 1-year manufacturer warranty for lasting value.

Color: Black


Material: Plastic


Capacity: 92 Gallons


Brand: ACTIVEAQUA


Product Dimensions: 20.5"D x 17.8"W x 20.3"H


Color: Black


Material: Plastic


Capacity: 92 Gallons


Brand: ACTIVEAQUA


Product Dimensions: 20.5"D x 17.8"W x 20.3"H


Style: Active Aqua Chiller 1/4 HP


Wattage: 460.00


Installation Type: Freestanding


Upper Temperature Rating: 65 Degrees Fahrenheit


Power Source: Electric


Global Trade Identification Number: 72


UPC: 638104022972


Manufacturer: Hydrofarm


Item Weight: 49.1 pounds


Item model number: AACH25HP


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great chiller
Size: 1/4 HP
Had the chiller for about a month. I use it in my cold plunge 5 days a week. The system has a built in 2 degree dead band so if it’s set on 46 degrees the system won’t kick on again until the water reaches 48 degrees. That can be changed but it helps preserve the compressor life. I have it hooked up to a 90 gallon plunge and it works flawlessly so far. You’ll have to buy a separate pump. I included a picture of the online pump I use. It has 3 speed settings and has been a lot better than the pump the company suggests. The systems quiet and cools quickly. For the money I really don’t think you can find a better chiller. I actually found this on YouTube initially. A lot of guys were reviewing it so I figured I’d take a chance on it. ... show more
Reviewed in the United States on May 21, 2025 by AujSee AujSee

  • It was definitely worth the investment and has made my cold plunge experience even better.
Size: 1/4 HP
I was in need of a chiller for my 140-gallon cold plunge and, after some browsing and comparing, I decided on this one. I’m happy to say I’m not disappointed! I had no prior experience with chillers and wasn't sure how to set it up, but the instructions were clear, and it was easy to get going. The chiller runs as expected, keeping the tank cool and maintaining a steady 50 degrees. It operates for about 45 minutes twice a day to keep the temperature stable, and the cooling process is efficient. While it does make some noise for a few minutes when it's cooling down to the set temperature, I actually find it soothing—kind of like the comforting hum of the A/C kicking on in a hotel room while you're on vacation. The temperature is consistent and reliable, and overall, I’m really impressed with how well it works. It was definitely worth the investment and has made my cold plunge experience even better. ... show more
Reviewed in the United States on March 23, 2025 by Andrew F.

  • Do not buy
Size: 1/4 HP
This product worked well for a little while. The temp is not calibrated any longer and is running about 50 degrees off. The company will not answer the phone or return my messages. I can’t find any replacement parts either. Very disappointed in that. This chiller was a lot of money to only work for a short time. Would not purchase again and do not recommend anyone else to purchase this pos. ... show more
Reviewed in the United States on June 28, 2025 by Kindle Customer

  • It Works!!!!
Size: 1/10 HP
I must admit that after reading the low level of reviews, I decided to give this unit a chance even though the price tag was out of this world. I could buy a nice A/C unit for less and that's all it really is, a very small A/C unit with just a different function and way less parts. This unit should sell for 1/2 this price. Now, having said all of that, I needed something to cool about 16 gallons of water and keep it that way 24/7 and for the life of me, couldn't find a cheaper one than this. So, here I am reviewing a product I expected the worse from and all I got was GREAT service. I bought this about 5-6 weeks ago and just now turned it off. It never missed a beat. It never leaked and, it maintained my "set" temp the entire time which, btw, is easy to set up. It does put off heat just like an A/C unit or Dehumidifier would so be prepared for that. I used a pump that had a high GPM compared to what was recommended for my water volume. Didn't matter. Worked Great! But, 5-6 weeks of good operation does not a good purchase make, especially at $300, so if I have trouble in the future, "I'll Be Back!" to update this review. As of this writing, I would recommend this unit..... Be sure to place upright for a length of time BEFORE you start up the unit. For me, I waited for hours. Make sure everything is secure also. Imagine what it's been through on the way to your door. PURE HELL!!!!! ... show more
Reviewed in the United States on May 6, 2020 by Alphadog

  • the unit works great!!
Size: 1/10 HP
i ordered the 1/10 unit and so far it has worked perfectly. i had to purchase the 1/2 hose kit with clamps because the unit only comes with larger barbs by default but the kit was only $10 so thats fine. there are a few things that should be corrected about the description... 1. the description says the unit uses r410a coolant but the manual says the 1/10 model uses r134a coolant. i dont know how that matters because im no expert but it doesnt match what the manual says. 2. the biggest blunder is the power draw. it says it uses 460w of power and i was worried that it would be too much for the area with the lights and pumps and everything else. when i got the unit i immediately hooked it up by following the directions and once i powered it on and it was in the middle of cooling it registered the power draw at a very very reasonable 180w. now i havent used the fast cooling option since my res is small but idk if that would double the power draw. as of right now 180w while its cooling is more than ok for me. some things i would have liked to see (i knew they werent features of the unit but they would be very useful)... 1. a power plug for water pumps. right now the water pump will run 24/7 even when the unit isnt cooling the water down and having a pump that shuts off soon after the unit does would save some power. my pump isnt drawing crazy amounts of power but like ne thing that draws power it is producing heat which heats up the res faster than it would if the pump wasnt running which ultimately makes the unit run more often and longer than it would if the pump would turn off. it also increases the life of the pump not having to run every moment of everyday. 2. have the unit run the fans for a couple of minutes after it finishes cooling. right now when it stops cooling and the compressor turns off the fan turns off too letting the internals heat soak in the heat generated by cooling. if the fan ran for a couple extra mins the heat with be removed increasing the life of the components. 3. include the dang 1/2 barb kit with the unit lol. all in all the device works great and it cooled the res temps all the way down to 65 degrees in less than an hour and it barely runs every hour so im very happy with the way it performs. ... show more
Reviewed in the United States on August 19, 2019 by Numnutz2005

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