Overview

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 PondSeries PS40 With 4 Diffusers Aeration System
Easy Installation with Options - Airmax Aeration Systems are the easiest and most versatile systems to install on the market. PondSeries PS40 With 4 Diffusers Aeration 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, and select from 115V or 230V systems. Airmax EasySet airline delivers oxygen to the water without the added expense of hiring an electrician.
Airmax Composite Cabinet - ETL electrical safety certified composite cabinet has a quiet design with a faux rock finish to blend 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 Compressor with SmartStart Technology (IST) - The heart and soul of each PondSeries Aeration System is a powerful whisper-quiet SilentAir 3/4 HP Rocking Piston Compressors built with SmartStart Technology (IST) to protect the compressor during pressurized restarts following power supply interruptions. Each highly efficient 115V or 230V compressor has rubber mounts to reduce noise and vibrations and ensure a silent operation. Each compressor can push up to 5.6 CFMs of oxygen to your pond while costing as little as $35.40 a month. Comes with a 3-year warranty.
Airflow Manifold Assembly - Airmax simplifies airflow management to individual diffusers with a 4-port manifold with nickel-plated ball valves. Optional airline quick disconnects can be added for simplified removal during maintenance or for winter storage of systems that do not run year-round. PondSeries PS40 With 4 Diffusers is set up for 3/8" or 5/8" airlines.
ProAir 4 Weighted Diffusers - Designed for maximum oxygen uptake, 4 ProAir 4 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 4 Weighted Diffuser has an integrated check valve to prevent back-pressure on the compressor. The innovative sled design keeps the ProAir 4 submerged while maintaining an upright position during installation. Comes with a 5-year warranty.

Piston Compressor
Highly efficient rocking piston compressor and manifolds with ball valves simplifies airflow management and continuous performance to individual diffusers.

Cabinet
ETL electrical safety certified composite cabinet features a quiet design with a faux rock finish that blends into any landscape while protecting electrical components.

Diffusers
4 ProAir 4 Weighted Diffusers have an innovative maintenance-free sled design that keeps them submerged in water while maintaining an upright position during installation.

Cooling System
The cabinet features a protective rain shroud and a pre-wired high-flow cooling fan that tunnels air flow evenly through the cabinet, protecting compressors against moisture and heat damage.

Air Filters
High-density cabinet intake pre-filter and compressor air filter maximize the performance and longevity of the system by protecting the compressors from outside contaminants.

The compressor includes a pressure gauge to help monitor system performance and a pressure relief valve to protect against back pressure.

Airmax PondSeries PS40 With 4 Diffusers Aeration Systems comes with or without (4) 100' rolls of 3/8" Self-Weighted Airline. This airline is kink-free & fish-hook resistant.

Mount Kit
Use the powdered coated aluminum Cabinet Post Mount Kit for installations that require the aeration cabinet to be elevated. Includes bracket and hardware to secure cabinet to both round or square wooden posts, 4" diameter or larger.

Security Kit
Simple, sleek design to protect all Airmax Aeration Systems. The Cabinet Security Kit can be used to anchor an aeration system to the ground and protect against unwanted guests.

Burial Airline
5/8" Direct Burial Airline is designed for underground applications. Ideal during aeration installations when the power source is away from the pond's edge. The rigid wall makes it resistant to deformation and crushing.

Manifold Kit
The Remote Manifold Kit allows for a single run of direct burial airline from the aeration cabinet to the pond. Allowing for airflow adjustments while viewing the diffusers. Great for installations when the power source is away from the pond's edge.
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Tech Specs
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PS40 With 4 Diffusers | |
Max Pond Size | Up to 4 Acres |
Max Diffuser Depth | 50' |
Aerates Ponds up to 6'-9' Deep | Up to 2 Acres |
Aerates Ponds up to 9'-12' Deep | Up to 3 Acres |
Aerates Ponds Over 12' Deep | Up to 4 Acres |
SilentAir Compressor | 3/4 HP Rocking Piston Compressor |
Running Amps | 4.3 or 2.15 |
Voltage | 115V or 230V |
Wattage | 495 Watts |
Max CFM | 5.6 |
ProAir4 Diffusers | 4 Diffusers |
Airmax Composite Cabinet | Standard Cabinet |
Cabinet Dimensions | 23"L x 17"W x 15"H |
Power Cord | 6' Cabinet Cord 2'6" Compressor Cord |
Monthly Operating Cost (24/7)* | $35.40 |
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.
CAD Details
Click below to access CAD drawings, specifications, and related design files for Airmax products.

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Are you looking to add an Airmax Aeration System or Fountain? We have a network of certified pond professionals who provide installation services.
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