Search  for anything...

AQUANEAT 4x2 inch 2 Pack Air Stones, Large Airstone, Aerator Bubble Diffuser, Air Pump Accessories Air Stones for Aquariums, Hydroponic, Ponds and Fish Tanks

  • Based on 1,395 reviews
Condition: New
Checking for product changes
$9.98 Why this price?
Save $1.56 was $11.54

Buy Now, Pay Later


As low as $2 / mo
  • – 4-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, 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: In Stock.
Fulfilled by Amazon

Arrives Tuesday, May 21
Order within 21 hours and 45 minutes
Available payment plans shown during checkout

Size: Middle 4x2"


Features

  • Widely applicable: Suitable for hydroponic systems, ponds, aquarium fish tanks, helping extend the life of your nutrient solution, keep fish/ roots healthy and promote plant growth
  • Air Stone Dimension: 2 "D x 4" H;Fits for 3/ 16 inch standard airline tubing
  • Recommended a high-output air pump at least 7W-10W or a commercial air pump
  • Quality and safe materials:made of mineral and washable material,safe to your fish
  • Note: soak the stone completely in water for 2 hours before use; clean it with a brush after a period time of use

Color: Grey


Brand: AQUANEAT


Material: Stone


Item Weight: 0.68 Kilograms


Power Source: Corded Electric


Is Discontinued By Manufacturer ‏ : ‎ No


Package Dimensions ‏ : ‎ 4.92 x 4.21 x 2.09 inches; 1.5 Pounds


Date First Available ‏ : ‎ March 28, 2018


Manufacturer ‏ : ‎ AQUANEAT


Best Sellers Rank: #14,392 in Pet Supplies (See Top 100 in Pet Supplies) #40 in Aquarium Air Pump Accessories


#40 in Aquarium Air Pump Accessories:


Customer Reviews: 4.5 4.5 out of 5 stars 1,395 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

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
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Recommended!
Size: Middle 4x2"
These are air stone beasts. They are big solid & heavy and pretty sturdy and they are so much more than I expected. The visuals in the water diffusion is amazing to see and they are ideal for aquariums with fish or live plants/both, and it is also ideal for hydroponics to and there are no problems with them floating off, they stay in place. We are very happy with them and they are excellent quality and I expect them to last a long time as solid and heavy as they are. Happy we found them! *If this review helped you make an informed choice about this product please take a moment to let me know that it is Helpful. Thanks!* ... show more
Reviewed in the United States on November 17, 2020 by LifePathin4D

  • Love it
Size: Middle 4x2"
These are great I ordered the two pack med size. I soaked them for the two hrs in luke warm water and they work just fine. The bubbles aren't as fine as i had hoped but they work it anchors great and dont take up alot of space.
Reviewed in the United States on April 24, 2023 by Gareisha Monique Smith Gareisha Monique Smith

  • Perfect
Size: Middle 4x2"
These are strong and powerful
Reviewed in the United States on February 4, 2024 by Kristin

  • Best Size for small pond and it works great
Size: Middle 4x2"
Best Size for small pond and it works great. If you have bigger pond you many need more of these or bigger ones
Reviewed in the United States on July 4, 2022 by Kiran K

  • Good purchase
Size: Middle 4x2"
I'm using these in 3.5 gallon buckets for my dwc grow. So far they are awesome.
Reviewed in the United States on February 2, 2024 by keeta

  • Work
Size: Middle 4x2"
nice big airstones, great value!
Reviewed in the United States on December 21, 2023 by Lars

  • great quality.
Size: Middle 4x2"
I as very apprehensive in buying these considering the price was so low, but I'm very pleased with the bubble pattern.
Reviewed in the United States on June 9, 2023 by Sifu

  • Worked GREAT for me!
Size: Middle 4x2"
I let this soak for 2 days in a quart container with luke-warm water. It's making tons on tiny bubbles. This is the MED size and is very beefy. Nice and heavy, dont even need a suction cup. Works great! Highly recommeded.
Reviewed in the United States on October 7, 2022 by Michael m Michael m

Can't find a product?

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