Airmax Shallow Water Series – Aerate up to 1/2 Acre
Price range: $1,399.99 through $2,349.99
The World’s Best Aerator
Airmax has re-engineered its line of Aeration Systems to bring you the World’s Best Aerator:
- The Most Effective
- The Quietest
- The Most Efficient
- The Easiest to Install
Stock | style | Price | |
---|---|---|---|
SW 20 - no airline | $1,399.99 | ||
SW 20 - 200' 3/8" EasySet Airline | $1,599.99 | ||
SW 40 - no airline | $1,949.99 | ||
SW 40 - 400' 3/8" EasySet Airline | $2,349.99 |
Description
Product Details
Airmax Shallow Water Series Aeration Systems are designed to provide maximum aeration and circulation in even the shallowest bodies of water. Shallow Water Series aerators are ideal for ponds that typically require multiple diffusers due to depth restrictions. This shallow pond aeration system has a powerful yet highly energy-efficient dual-diaphragm compressor that delivers air to the virtually maintenance-free ProAir2 Weighted Diffusers up to 6′ deep. Airmax Shallow Water Series Aeration Systems are manufactured in the USA with high-performance, professional-quality components.

The World’s Best Aerator
Airmax has re-engineered its line of Aeration Systems to bring you the World’s Best Aerator:
- The Most Effective
- The Quietest
- The Most Efficient
- The Easiest to Install

ProAir2 Weighted Diffuser
- PTFE Non-Stick 6″ Membrane Diffuser Stick:Provides the synergies of air stones while being virtually maintenance-free.
- Check Valve:Prevents back pressure on the compressor
- Innovative Sled Design:Keeps diffuser submerged while maintaining an upright position during installation.

SilentAir LR Series Compressor
- High-Efficiency Compressor with Rubber Mounts:Reduces noise & vibration to ensure silent operation.
- Air Filter:Maximizes the life of the compressor.
- Airflow Manifold:Simplifies airflow management to individual diffusers.
- Airline Quick Disconnects:Allows easy system removal and storage.

Airmax ETL Composite Cabinet
- Enhanced Cooling System:Tunnels air flow evenly through the cabinet with a high flow cooling fan & high-density air intake pre-filter to remove air debris.
- Composite Cabinet with Removal Top:ETL Electrical Safety Certified Cabinet protects components while providing easy access.
- Elevated Base:Protects against damaging flood water.
- Pre-Wired Electrical Box:Simplifies electrical connections for easy setup.
- All Airmax Aeration Systems are ETL Listed and proudly Made in the USA.

Airmax EasySet Airline
- Self-Weighted:No bricks, weights, or ties are needed. This airline is kink-free & fish hook resistant.
- Direct Burial:Use from power source to pond’s edge. Remote Manifold Kits are available for longer runs.
Tech Specs
![]() SW20
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![]() SW40
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ProAir2 Diffusers | 2 | 4 |
Max Pond Size | Up to 1/4 Acre | Up to 1/2 Acre |
Max Diffuser Depth | 6′ | 6′ |
SilentAir Linear Diaphragm Compressor | LR25 | LR50 |
Running Amps | 0.43 | 0.87 |
Voltage | 115 | 115 |
Wattage | 50 | 100 |
Max CFM | 2.5 | 4.9 |
Monthly Operating Cost (24/7)* | $3.60 | $7.20 |
3/8″ EasySet Weighted Airline Options** | None, 100′, (2) 100′ | None, 200′, (4) 100′ |
Cabinet Dimensions | 23″L x 17″W x 15″H | 23″L x 17″W x 15″H |
Power Cord | 6′ | 6′ |
ProAir2 Diffuser Warranty | 5-Year | 5 -Year |
Compressor & Electrical Component Warranty | 3-Year | 3-Year |
Composite Cabinet Warranty | 10-Year | 10-Year |
EasySet Airline Warranty | 5-Year | 5-Year |
*Monthly Operating Cost was calculated at $0.10 per kilowatt hour. Please note that costs will vary depending on location.
**For SW20 Systems, if your combined airline length is over 200′, use a 5/8″ EasySet airline. For SW40 Systems, if your combined airline length is over 400′, use a 5/8″ EasySet airline.
When to Use
Airmax Shallow Water Series Aeration Systems can be used in ponds 6 feet deep or less where standard bottom diffuser aeration systems become less effective and economical. Ideal for shallow water bodies like retention ponds, the Shallow Water Series will provide continuous circulation and aeration. By aerating your pond from the bottom up, you’ll circulate incredible amounts of water, drastically increasing the dissolved oxygen levels in your water column. This allows increased levels of beneficial bacteria to accumulate in your pond, reducing pond odors and muck accumulation.
How to Use
Airmax Shallow Water Series Aeration Systems can be installed at the edge of your pond or at 115-volt power source up to 1,000 feet away utilizing Airmax Direct Burial Airline*. The Airmax Composite Cabinet protects the aeration compressor components from the elements and does not need to be placed indoors. The ProAir2 Weighted Diffuser can be connected to the SilentAir LR Series Compressor using EasySet Weighted Airline* and fitting sets. The ProAir2 Weighted Diffuser should be placed near the deepest areas of your pond and distributed equally to promote adequate aeration throughout the entire water body. Airmax Shallow Water Series Aeration Systems are designed to run 24/7 year-round**. Be sure to follow the included installation instructions when running your Airmax Shallow Water Series Aeration Systems for the first time.
*Airmax Direct Burial Airline is not included but should be used when trenching the airline underground while EasySet Weighted Airline is intended for underwater use.
**When running your aeration system for the first time, follow the start-up instructions in your user manual to prevent pond turn-overs and fish kills. If you use your pond for recreation in the winter, you should turn off and store your aeration system as it creates thin ice and potential fall-through hazards.
Diffuser Placement Guide
SW20 Oval
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SW20 Kidney
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SW40 Rectangle
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SW40 Irregular
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Additional information
style | SW 20 – no airline, SW 20 – 200' 3/8" EasySet Airline, SW 40 – no airline, SW 40 – 400' 3/8" EasySet Airline |
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