Product details

Learn more about the Surface Aerator with Float & Bottom Screen

About

Kasco Surface Aerators are designed to increase oxygen levels and improve water circulation by pumping large volumes of water into the air. This movement helps keep ponds and lakes mixed while supporting healthier water conditions.

Available in a range of horsepower, voltage, phase, and cord length options, Kasco Surface Aerators are well suited for ponds, lakes, aquaculture applications, and other environments where oxygen transfer and water movement are essential.

Applications

  • Backyard ponds
  • Residential ponds
  • Commercial ponds
  • Retention ponds
  • Golf course ponds
  • Recreational lakes
  • Fish farms

Available Models

  • 1/2, 3/4, 1, 2, 3, and 5HP
  • 120V, 208-240V, and 460-480V options
  • Single and three phase motor configurations
  • Power cord lengths of 25 ft., 50 ft., 75 ft. 100 ft., 150 ft., 200 ft., 250 ft., 300 ft., 400 ft.
  • Custom cord lengths available

Warranty

  • 1/2, 3/4, and 1HP - 2-year warranty
  • 2, 3, and 5HP - 3-year warranty (optional 2-year extended warranty available)
Features
  • Moves large volumes of water into the air
  • Adds oxygen while keeping water mixed
  • Helps reduce odor, algae pressure, and stratification
  • Saltwater and freshwater compatible

Performance

  • Built for continuous, supplemental, or emergency use
  • Operates in water depth as shallow as 17.5 in.
  • Custom propeller designed for efficient performance

Maintenance

  • Carbon ceramic seal helps protect internal components
  • Sacrificial anode protects against corrosion
  • UV-resistant float and propeller
  • Flex sleeve cord protection helps reduce cable wear

Installation

  • One-piece and three-piece float
  • (3) 50 ft. mooring ropes help position the unit in open water

Safety

  • ETL Listed to UL and CSA Standards as a complete package
  • Underwater-rated cable is UL, CSA, and NEC approved
  • Thermal overload protection
Package Includes

Included Components

  • Motor unit
  • Float
  • Bottom screen
  • Power cord

Not Included

  • Control panel
  • Lighting package
Load video:

A Better Pond Top to Bottom

Surface Aerators prevent algae growth, stratification, and foul odors by providing a source of constant water movement. Water constantly moving supports a healthier pond environment from top to bottom.

Explore Real-World Aeration Results

How it Works

Specifications

60Hz Models
Size (HP)
Cord Length (ft.)
Phase
Voltage
Amps
Minimum Depth (in.)
2400AF
1/2HP
50, 100, 150, 200
1
120V
5.7
17.5
3400AF
3/4HP
50, 100, 150, 200
1
120V
6.7
17.5
3400HAF
3/4HP
50, 100, 250, 200, 250, 300, 400
1
208-240V
3.4
17.5
4400AF
1HP
50, 75, 100, 150, 200
1
120V
9.1
19
4400HAF
1HP
50, 100, 150, 200, 250, 300, 400
1
208-240V
4.4
19
8400AF
2HP
50, 100, 150, 200, 250, 300, 400
1
208-240V
9
20
U2.3AF
2HP
50, 100, 150, 200, 250, 300, 400
3
208-240V
4.5
20
U2.3HAF
2HP
100, 150, 200
3
460-480V
3.6
20
3.1AF
3HP
50, 100, 150, 200, 250, 300, 400
1
208-240V
10.7
24
U3.3AF
3HP
50, 100, 150, 200, 250, 300, 400
3
208-240V
8.2
24
U3.3HAF
3HP
100, 150, 200, 250
3
460-480V
4.1
24
5.1AF
5HP
100, 150, 200, 250, 300, 400
1
208-240V
18
26
U5.3AF
5HP
100, 150, 200, 250, 300, 400
3
208-240V
13
26
U5.3HAF
5HP
100, 150
3
460-480V
6.5
26
Product Notes:
1. To create a part number, add the selected cord length to the end of the model number using a three-digit format. Cord lengths less than 100 ft. require a leading zero (50 ft. = 050). For units with a bottom screen option, add BTM SCR to the end of the completed part number (ex: 3400AF050 BTM SCR).
2. Custom cord lengths available. Contact Kasco for details.

Blog posts

Kasco Case Study: The Most Efficient Surface Aerator for Your Pond

Kasco Case Study: The Most Efficient Surface Aerator for Your Pond

We embarked on a case study to determine how well our Kasco Surface Aerators improve water quality in shallow ponds. Read to find the results!

Read more

What is D.O. & Why You Should Care

What is D.O. & Why You Should Care

D.O. (dissolved oxygen) is the amount of oxygen in water, and is a direct indicator of your water's health. Learn more about this critical pond ingredient.

Read more

Interview with the Engineer – NEW W25 & RGBW18 WaterGlow Lighting Systems

Interview with the Engineer – NEW W25 & RGBW18 WaterGlow Lighting Systems

Meet the new W25 and RGBW18 WaterGlow lights. Explore brighter performance, customizable effects, and smarter design in this interview with Kasco’s engineer.

Read more

Testimonials for Surface Aerator with Float & Bottom Screen

"Our pond is cleaner, the fish are happy, and so are we!"

Linda | Irving, TX

"I purchased this aerator two years ago to use in one of our irrigation ponds. It has worked great for the past two year and is going strong."

Duane | Grayland, WA

"Kasco Surface Aerators are a must to keep the fish alive in our sumps as we pull these large ponds down and concentrate the fish. We use a small Honda generator with an extra gas tank to keep it running all night long. It also concentrates the fish around it for an easier harvest first thing in the morning."

Mike | St. Croix Falls, MN

  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
N
N/A

Purchase this aerator for my 3 acre farm pond after constant 85+ heat and age starting to build up! Ran the aerator off of my farm generator for 12 hours a day for a week and it really cleaned up the water/alge. Also. added blue dye to stop algae growth. My bass. bream, crappie and other fish love all of the extra oxygen. Also purchased the pump cage as I have a lot of turtles and didn't want one of those suckers to crawl into the pump and break the blades!. I purchased a 75 foot cord but wish I had gotten 100 feet. Get a longer cord if you can as it will give you extra flexibility to move the aerator around.

T
T. Blue

my last one lasted maybe 6-7 years. keeps pond clean, and beautiful. fish thrive with no problems, even with the heat during the summer here in Florida. I would recommend this unit.

W
Weseng

Have two of these running in a small lake on the ranch, one has been running 24/7 for three years without a hitch. If you anchor the power cord at the power source you can use only one other anchor on opposite side and it works fine. Using the right size anchor will hold it in place and still allow you to pull it in if you want to clean it. Best to leave it run continuously as if on a timer turtles etc. will sit on the float to sun themselves when it is off and occasionally enter the center by the propeller. When the unit comes on it will break the propeller and likely the turtle as well. UPDATE: Now 5 years on the original and sitll going 24/7

D
Darlene P.

We've had this in our pond now for about a month and we just love it. It looks cool and is aerating the pond really well.

FAQs

Do Surface Aerators help prevent fish kills in ponds
Yes, Surface Aerators help prevent fish kills by increasing oxygen levels during hot weather or low-oxygen conditions. They are often used proactively in summer to maintain healthy water conditions and protect fish populations.
Are Surface Aerator systems different from fountains?
Yes, Surface Aerators focus on oxygen transfer and water movement rather than decorative spray. They create more turbulence but less visual display than fountains, making them better suited for functional water quality improvement.
Are Surface Aerator systems safe for swimming areas?
No, Surface Aerators are not safe for swimming areas. Surface Aerators require electricity in the water which poses extreme risks. Never enter the water while electrical equipment is plugged in or in operation.
Can you install a Surface Aerator system yourself?
Yes, many Surface Aerators are designed for straightforward installation. Units typically float and are anchored in place, making setup manageable for most users when following manufacturer guidelines and electrical requirements.
Can Surface Aerators be used year-round in all climates?
In colder climates, Surface Aerators are often used seasonally. However in icy conditions, they may need to be removed so they don't ice over. Always follow winter operation recommendations for your region.

Looking for more information?

Read more of our frequently asked questions about our Surface Aerator with Float & Bottom Screen.

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