Search  for anything...
Airmax

CrystalClear PondAir 4, Aeration Kit for Water Gardens & Koi Fish Ponds up to 2,000 Gallons, Quiet & Energy Efficient, Made for Year-Round Use to Maintain Clean & Clear Water

    • Based on 2,627 reviews
Condition: New
Checking for product changes
$94.99 Why this price?

Buy Now, Pay Later

As low as $15.83 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 10 left in stock, order soon!
Fulfilled by Airmax, Inc.
Arrives Dec 28 – Dec 30
Order within 9 hours and 57 minutes
Available payment plans shown during checkout

Size: PondAir 4 Aeration Kit


Features

  • Small Aerator for Ponds up to 2,000 Gallons -- Increases water circulation and oxygen saturation, improving the natural ecosystem. Ideal for a backyard pond, water garden, or small outdoor fishpond.
  • Improves Water Quality & Clarity -- Bottom-diffused aerators push air through an air stone and into your pond. Aeration supports beneficial bacteria that work to clear pond water and eliminate muck.
  • Quiet Operation & Energy Efficient -- Electric compressor equipment has near-silent operation and is designed to run 24/7, using only 8 watts of power. Aerate your koi pond for just pennies a month!
  • Various Uses -- Use during the winter months to help keep a hole in pond ice and to vent harmful gases. Aerator kits can also be used in a large aquarium, stock tank, or hydroponic application.
  • Optional Faux Rock Cover - Protect your investment from the elements by adding a TrueRock Mini cover. The fake rock is vented for proper airflow to the equipment. Constructed of durable fiberglass.

Brand: Airmax


Color: Blue


Style: Diaphragm


Power Source: Battery Powered


Item Weight: 1 Pounds


Voltage: 115 Volts


Product Dimensions: 10 x 9 x 6 inches


Item Weight: 1 pounds


Manufacturer: Airmax


Item model number: Pondair 4


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 28 – Dec 30

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Pretty nice
Size: PondAir 4 Aeration Kit
Item came nicely packaged with easy instructions. This was easy to install in my outdoor fish pond. However, the air lines wanted to float so I had to weigh them down with light rocks and zip tied hose’s together where they shared a pathway to consolidate hoses near each other. One of my check valves was not working by not allowing air to pass through it and through the air stone, so I messaged the seller. I waited several days with no reply and then called Amazon customer service. They could not send me just the air check valve and instead sent me the entire unit again for a replacement. I took out what I needed and returned the package. Seemed like overkill, but end result is that now all 4 air lines are producing air bubbles as designed. I’d recommend this unit. Works well. I didn’t rate the longevity because I’ve only had it working for a week or so now. I hope this will last a few years at least. Some reviews complained about noise, but I find it to be fairly quiet. You have to expect some noise level but I don’t pay any attention to it. ... show more
Reviewed in the United States on September 22, 2022 by Robert S.
    • Aerator
Size: PondAir 4 Aeration Kit
Arrived swiftly. Used to aerate my pond. Worked very nicely. Easy to set up
Reviewed in the United States on December 2, 2023 by paul
    • Reliable product
Size: PondAir 2 Aeration Kit
Though smaller than my previous bubbler, this one is quiet and yet very powerful. It’s working great in my pond this winter!
Reviewed in the United States on November 27, 2023 by Amazon Customer
    • Works well easy to set up
Size: PondAir 2 Aeration Kit
Clear instructions, just started using fish seem to like the bubbles Bought to use instead of heater this winter Good price, happy so far
Reviewed in the United States on October 2, 2023 by Dc
    • Reliable.
Size: PondAir 2 Aeration Kit
I've been using this for over a year and a half with the original air stones and tubing. Mostly no issues. The tubing pops loose every few months, possibly related to the outdoor heat, but it hasn't bothered me too much. One of the air stones has degraded a bit from sitting in muck, but it's still functional. ... show more
Reviewed in the United States on December 4, 2023 by scradam
    • Very quiet pump that puts out a lot of air.
Size: PondAir 2 Aeration Kit
I purchased this pump to replace a functional, but noisy pump. I keep my pump indoors and run air lines out to the pond and the old pump sounded like the buzz of fluorescent lights!! This pump is nearly silent. Puts out a nice amount of air with the two included air stones and the adjustable output is a nice feature as well. This provides enough air for our pond (with the air stones on the bottom) that is approx. 16'L x 3'W x 3'D - around 750 gallons. ... show more
Reviewed in the United States on October 26, 2023 by ryan fardo
    • Works amazing with no air pump sound.
Size: PondAir 2 with TrueRock Greystone Cover
Review Image by Kathleen Warner Kathleen Warner
Review Image by Kathleen Warner Kathleen Warner
The temperatures in Utah have been in the upper 90's and the Koi fish didn't seem to have a lot of energy. I decided to give this brand a try after reading reviews on other brands. After having the system in the pond for just for just one day, it was amazing of how the fish responded. It is now day three and the fish are active in the heat of the day and loving life. My pond has always been clear, but it's strarting to look cleaner. Seriouly, the best purchase I've ever made! I also purchased the artificial rock cove at the same time as a package deal and the cover works great, even though it's hidden behind tall grass. I placed the unit on a flat stone with the cover. There is no sound coming from the unit. ... show more
Reviewed in the United States on July 31, 2023 by Kathleen Warner Kathleen Warner
    • Every pond should have an aeration system, the most effective way to add needed oxygen
Size: PondAir 2 Aeration Kit
I’ve only had this aerator system for 4 days now. I bought it since I’ve read that regular filter pumps, fountains, and even waterfalls don’t add enough oxygen for a healthy pond and fish! It is working very well and my 2 large Koi are much more active with the extra oxygen in the water! I went on the website for this pump (crystalclearpond.com) to learn more about caring for it. If I experience any problems with it, I now know how to fix them. I know how to clean the air stones if they stop producing bubbles and how to buy and replace the diaphragm if the pump is not working as well as usual. I’m happy that this system can be repaired instead of having to buy a whole new system! Some reviewers reported that an aeration system also helped reduce algae growth. The company information says it costs only $0.29 for the electricity to run this system for a month! ... show more
Reviewed in the United States on March 26, 2023 by JZ

Can't find a product?

Find it on Amazon first, then paste the link below.