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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: In Stock.
Fulfilled by Spreetail

Arrives Monday, Apr 27
Order within 22 hours and 17 minutes
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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


Wattage: 460.00


Installation Type: Freestanding


Upper Temperature Rating: 65 Degrees Fahrenheit


Power Source: Electric


Capacity: 92 Gallons


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


Color: Black


Style Name: Active Aqua Chiller 1/4 HP


Material Type: Plastic


Brand Name: ACTIVEAQUA


Model Number: AACH25HP


Manufacturer Warranty Description: 1 year.


Global Trade Identification Number: 72


UPC: 638104022972


Manufacturer: Hydrofarm


Manufacturer Part Number: AACH25HP


Unit Count: 1.0 Count


Item Type Name: Active Aqua Chiller with Power Boost, 1/4 HP


Included Components: Includes Fittings


Item Weight: 49.1 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Apr 27

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
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. Update: it’s been a year next month and the system hasn’t skipped a beat. Absolutely unbeatable. It stays on 24/7 for the price I’m really happy with this purchase. If it crapped out today I’d deff be buying another one ... show more
Reviewed in the United States on May 21, 2025 by AujSee

  • Great chiller that also warms (somewhat)
8 months in and the chiller is working great. One thing to note, the chiller does actually work to heat water as well as chill it. I have it installed in a cold plunge in Michigan and we have with high temps in the mid 20s right now. The chiller can't quite maintain the 50 degree set point, but it is very close at around 48 degrees. Back in January when temps were around 10 degrees all day long, the chiller kept the water around 43 degrees. It had no difficulty keeping the water cool last summer, but because of information in other reviews, I bought an aquarium heater thinking that the water might freeze in winter and that was unnecessary. ... show more
Reviewed in the United States on March 17, 2026 by kim hirai

  • after one month, chiller doing a great job. 1.5 years; thermostat died.
UPDATE #3 thermometer died. (a little over 1.5 years). I keep it in our enclosed patio (yes I know it says indoor only). I kept filters clean and was not exposed to liquid or dirt. I stored it for 2 months during winter months here in Florida. Turned it on and got the thermostat broke error. Will probably cost more than the unit is worth to have thermometer fixed. Must be the Florida humidity or fresh ai UPDATE #2 (contacted seller) They responded within a week and offered some suggestions but all where "common sense". Issue with paper coming out of the chiller unit and into the water they responded: "could have been some packaging material was left inside at manufacturer." but, they will NOT do anything about it since I have it on my screen-enclosed porch. (technically outside). They did not have any solution for the temperature gauge being wrong. Pretty disappointed because even if I did have the unit inside, these hoses slightly leak. Plus, condensation alone will dampen your floor. It's still chilling well though, but with the thermometer broken I have to rely on manual floating thermometer. Will not buy this cooler again because I refuse to put this wet leaking thing inside my home. I voided the warranty by putting it on my porch (like everyone does it seems). UPDATE 9 MONTHS - chiller still working well but all of a sudden the thermostat is exactly 10 degrees off (too high). Not a big issue as it's consistently 10 degrees exactly, just something to consider. (did not change location or anything else) BIG problem is it's spewing out small bits of what looks like thin brown paper. I'm going to take it apart and look at it, also will try to contact manufacturer. Will update with results. Able to keep my 100 gal cold plung at 55 degrees all day outside in Florida summer (under covered porch). Actually got it down to 48 without much problem! Unit is very quiet, chills quickly for it's size, attachments seem to fit well and do not leak. CONS (all very minor, just fyi stuff I wish i had known) - Unit is slightly different than pictures (hose locations, side power switch) - To turn off need to hold down for 6 seconds. Would like to have the power switch on top instead of way down on side. - Boost function doesn't seem to cool any quicker. - Hose attachments are cheap plastic, seems these would fail before mechanics but we'll see. ... show more
Reviewed in the United States on September 12, 2024 by PixelPusher

  • It was definitely worth the investment and has made my cold plunge experience even better.
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.

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