Airmax SW40 System w/ 4 Diffusers & 400′ 3/8” EasySet Airline


Aeration for Ponds up to 1/2 Acre, up to 6′ Deep
World’s Best Aerator

Most Effective
Most Efficient
Easiest to Install

SKU: 600813 Categories: , ,


Aeration systems utilize a shore-mounted air pump that delivers air to specialized diffusers that are located on the pond bottom. Resulting in a column of rising bubbles that circulates water throughout the pond, eliminating a change in temperature or thermocline. With increased oxygen and added natural bacteria, any excess nutrients in the pond or lake are metabolized, resulting in cleaner water and less muck. Results you can see in just 90 days!

Aeration circulates the water and increases oxygen, providing long-term benefits and reducing overall maintenance. Aeration is a key step in the Airmax Ecosystem, a simple 3 step approach to pond and lake management. The Airmax Ecosystem is the industry-leading method to achieve a clean, clear, thriving aquatic ecosystem. Learn more about the Airmax Ecosystem.


Airmax Shallow Water Series SW40 Aeration System

Easy Installation with Options – Airmax Aeration Systems are the easiest and most versatile systems to install on the market. Shallow Water Series SW40 System can be installed at the water’s edge or up to 1/4 mile away from the pond or lake. No power is needed at the shore for this 115V system. Airmax EasySet airline delivers oxygen to the water without the added expense of hiring an electrician. This high-pressure system is ideal for increasing oxygen to shallow ponds up to 6′ deep.

Airmax Composite Cabinet – ETL electrical safety certified composite cabinet has a quiet design with a faux rock finish that blends into any landscape. The removable top and side high-density air intake filter protect the compressor and pre-wired electrical box from outside contaminants while providing easy access. Other cabinet features include an elevated base protecting against damaging flood water and a ventilation fan with a rain shroud that cools and protects against moisture and heat damage. Cabinet dimensions: 23″L x 17″W x 15″H. Comes with a 10-year warranty.

SilentAir Linear Diaphragm Compressor – The heart and soul of each Shallow Water Series Aeration System is a powerful whisper-quiet LR50 Linear Diaphragm Compressor built for high efficiency, this 115V compressor comes with rubber mounts to reduce noise and vibrations to ensure a silent operation. The SW40 can push up to 4.9 CFMs of oxygen to your pond while costing as little as $7.20 a month. Comes with a 3-year warranty.

Airflow Manifold Assembly – Airmax simplifies airflow management to individual diffuser plates with a 4-port manifold with nickel-plated ball valves, braided hose sleeves that protect internal airlines from wear, and quick airline disconnects for fast and secure airline connections, and system removal for storage. The SW40 System is set up for 3/8″ or 5/8″ airlines.

ProAir 2 Weighted Diffusers – Designed for maximum oxygen uptake, 4 ProAir 2 Weighted Diffusers incorporate high-efficiency, low-maintenance membrane sticks to release tiny oxygen bubbles into the water column. Membrane diffusers have the synergy of air stones without the headaches of cracking and acid-washing. The ProAir 2 Weighted Diffuser has an integrated check valve to prevent backpressure on the compressor. The innovative sled design keeps the ProAir 2 submerged while maintaining an upright position during installation. Comes with a 5-year warranty.


Max Pond Size Up to 1/2 Acre
Max Diffuser Depth 6′
Aerates Pond Size Up to 6′ Depth Up to 1/2 Acre
SilentAir Compressor LR50 Diaphragm
Running Amps 0.87
Voltage 115
Wattage 100 Watts
Max CFM 4.9
ProAir 2 Diffusers 4 Diffusers
Airmax Composite Cabinet Cabinet
Cabinet Dimensions 23″L x 17″W x 15″H
Power Cord 6′
Monthly Operating Cost (24/7)* $7.20
ProAir Diffuser Warranty 5-Years
Compressor & Electrical Component Warranty 3-Years
Composite Cabinet Warranty 10-Years
EasySet Airline Warranty 5-Years

*Monthly Operating Cost is calculated at $0.10 per kilowatt hour. Please note that costs vary by location.

Additional information


4.9 CFM




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