Double Skid AIRMAX Pond Aeration System - PS20
$2,599.99
System: Airmax PondSeries PS20, 115V
Pond coverage: Up to 2 acres
Included: 2 ProAir 4 diffusers & 200' of 3/8" weighted airline
Compressor: 1/2 HP, 4.7 CFM
Depth: Up to 50'; Deep Water Kit required beyond 21' (sold separately)
Warranty: Compressor & electrical components: 3 years; airline & diffusers: 5 years; cabinet: 10 years
Made in USA | ETL Listed
Pond coverage: Up to 2 acres
Included: 2 ProAir 4 diffusers & 200' of 3/8" weighted airline
Compressor: 1/2 HP, 4.7 CFM
Depth: Up to 50'; Deep Water Kit required beyond 21' (sold separately)
Warranty: Compressor & electrical components: 3 years; airline & diffusers: 5 years; cabinet: 10 years
Made in USA | ETL Listed
Airmax PondSeries | Complete Two-Diffuser Package
Airmax PS20 Pond Aeration System
Give your pond dependable bottom-up circulation with the Airmax PondSeries PS20. Built for ponds up to 2 acres, this system uses a 1/2 HP rocking-piston compressor and two weighted ProAir 4 diffusers to move water through the pond's depths, support dissolved oxygen levels, and help reduce stagnant conditions. This package includes 200 feet of 3/8" self-weighted airline for the two diffuser runs.
Up to 2 acresMaximum rated pond coverage
2 ProAir 4 diffusersWeighted bottom-diffuser plates
200 ft includedTotal 3/8" weighted airline
115V / 1/2 HPRocking-piston compressor
Why Choose the PS20?
Bottom-Up Circulation
Fine bubbles rise from two diffuser locations, helping circulate deeper water and support more consistent oxygen distribution throughout the pond.
Controlled Air Distribution
A dual-outlet airflow manifold lets you balance air delivery between the diffuser locations to accommodate different depths and line lengths.
Outdoor-Ready Equipment
The ventilated composite cabinet protects the compressor, while the cooling fan, filters, pressure gauge, and SmartStart technology support reliable operation and routine servicing.
Is the PS20 Right for Your Pond?
Pond size alone does not determine the right aeration system. Depth, shape, diffuser placement, and airline length all affect circulation. The PS20's two diffusers are suited to ponds that benefit from aeration in two locations. Shallow or irregularly shaped ponds may require additional diffusers or a different system.
Before You Order: Depth & Airline Planning
Maximum system depth: Airmax rates the PS20 for pond depths up to 50 feet. However, its PondSeries installation manual requires a Deep Water Kit, sold separately, for diffuser placement deeper than 21 feet.
Included airline: The 200 feet is the total supplied for both diffuser runs, not 200 feet per diffuser. Measure the actual routing distance from the compressor or shoreline connection to each diffuser before ordering.
For longer airline runs, alternate routing, or unusual pond shapes, contact our Sales/Tech Team so we can help you select the appropriate equipment.
What's Included
1/2 HP SilentAir Rocking-Piston Compressor
Continuous-duty compressor with SmartStart technology, vibration-reducing mounts, air filtration, pressure gauge, relief valve, and airflow manifold for two diffuser outlets.
Airmax Composite Cabinet
Outdoor composite enclosure with removable top, cooling fan, ventilated intake filtration, elevated base, and pre-wired electrical components. Cabinet dimensions: 23"L x 17"W x 15"H.
2 ProAir 4 Weighted Diffuser Plates
Each plate measures 19"L x 19"W x 5"H and incorporates four 6" PTFE non-stick membrane diffuser sticks and a check valve. The weighted design helps keep the plate positioned underwater.
200' of 3/8" Self-Weighted Airline
Airmax EasySet-style weighted airline is intended to rest along the pond bottom between the shoreline connection and the diffusers. It does not require separate weights along its underwater run.
Installation materials that may be sold separately: Additional airline, airline connector kits, direct-burial tubing for land-based runs, a Deep Water Kit for depths over 21 feet, and optional cabinet-mounting equipment. Electrical service and site preparation are not part of the equipment package.
PS20 Technical Specifications
Blue Thumb SKU: A600832
Airmax item number: 600832
System model: PondSeries PS20
Maximum rated coverage: 2 acres
Number of diffusers: 2 ProAir 4 plates
Compressor: 1/2 HP rocking piston
Operating voltage: 115V
Running amperage: 4.1 amps
Maximum airflow: 4.7 CFM
Maximum rated depth: 50 ft; Deep Water Kit required beyond 21 ft
Cabinet dimensions: 23"L x 17"W x 15"H
Diffuser dimensions: 19"L x 19"W x 5"H each
Included airline: 200 ft total, 3/8" weighted
Power cord: 6 ft
Electrical listing: ETL Listed
Country of manufacture: USA
Operating-cost reference: Airmax estimates approximately $33.00 per month for continuous 24/7 operation at an electricity rate of $0.10 per kWh. Actual utility costs depend on your electricity rate and operating conditions.
Installation note: The 115V specification refers to this exact package. Other PS20 voltage configurations are separate manufacturer items.
Compare Airmax PondSeries Systems
Choose the number of diffusers based on your pond's surface area, depth, and layout. The figures below are maximum manufacturer ratings for each system family; effective coverage depends on site conditions.
| System | Max. Pond Size | Diffusers | Compressor | Max. Airflow |
|---|---|---|---|---|
| PS10 | 1 acre | 1 | 1/4 HP | 2.3 CFM |
| PS20 — This Model | 2 acres | 2 | 1/2 HP | 4.7 CFM |
| PS40 | 4 acres | Up to 4 | 3/4 HP | 5.6 CFM |
| PS60 | 6 acres | Up to 6 | 1 HP | 7.1 CFM |
PS10
Maximum coverage: 1 acre
Diffusers: 1
Compressor: 1/4 HP
Maximum airflow: 2.3 CFM
PS20 — This Model
Maximum coverage: 2 acres
Diffusers: 2
Compressor: 1/2 HP
Maximum airflow: 4.7 CFM
PS40
Maximum coverage: 4 acres
Diffusers: Up to 4
Compressor: 3/4 HP
Maximum airflow: 5.6 CFM
PS60
Maximum coverage: 6 acres
Diffusers: Up to 6
Compressor: 1 HP
Maximum airflow: 7.1 CFM
Explore the PS10 single-diffuser system, PS40 three- or four-diffuser systems, and PS60 five- or six-diffuser systems.
Installation: What to Expect
Plan the Location
Choose a stable, ventilated location for the cabinet above the pond's high-water mark. Provide access to a properly grounded, GFCI-protected electrical outlet.
Route the Airline
Run the weighted airline underwater toward the two diffuser locations. Use properly sized direct-burial airline for any required underground run on land.
Position the Diffusers
Assemble and connect the two ProAir 4 plates according to the manual. Place them in the planned locations and balance airflow with the cabinet manifold.
Start Gradually
Follow Airmax's seven-day initial startup procedure. Do not immediately begin continuous operation in a stagnant pond that has not been aerated recently.
Important: Gradual Startup Helps Protect Fish
Starting bottom aeration too quickly can bring low-oxygen water and trapped gases toward the surface. Airmax specifies a gradual schedule when starting a new system or restarting after an extended shutdown: 30 minutes on day 1, then 1, 2, 4, 8, and 16 hours on days 2 through 6, followed by continuous operation beginning on day 7. Follow the official manual for complete procedures and precautions.
Maintenance & Seasonal Operation
Airmax systems are designed for continuous operation with periodic maintenance. Keeping the cabinet ventilated and monitoring normal compressor pressure helps maintain dependable airflow.
Every 3–6 months: Inspect or clean air filters, cooling fan, pressure gauge, and relief valve.
Every 12–18 months: Follow the compressor maintenance-kit guidance in the applicable manual.
Every 24–36 months: Inspect and clean membrane diffuser sticks as needed.
Summer operation: Continuous 24/7 operation is recommended by Airmax.
Winter safety: Operating bottom aeration beneath ice can create open water and dangerously thin ice around diffuser locations. Follow the manufacturer's seasonal instructions and keep people and animals away from unsafe ice. If shutting down the system for the season, follow the prescribed disconnect and storage procedures.
Additional Airline & Replacement Components
Planning longer runs or maintaining an existing system? The following equipment pages can help you identify compatible airline and diffuser components.
Airline extensions and fitting requirements depend on the planned route. Check the manufacturer instructions before changing airline diameter or extending a system.
Airmax Warranty Coverage
Airmax's current published aeration warranty distinguishes coverage by component:
Compressor & electrical: 3 years
Airline & diffusers: 5 years
Composite cabinet: 10 years
Manufacturer warranty terms and exclusions apply. Wear components are not included in the standard aeration warranty.
Official Product Resources
Use the current manufacturer warranty information shown above where older manual revisions differ.
Airmax Aeration Installation Video
This official Airmax video introduces general aeration-system installation. It covers the product family rather than this exact PS20 package, so follow the current PS20 manual for component-specific procedures and requirements.
Video: Airmax Aeration System Installation | Official Airmax YouTube channel
Need Help Planning Your Pond Aeration?
Not sure whether two diffuser locations or 200 feet of airline will cover your pond? Our Sales/Tech Team can help you evaluate pond depth, layout, airline routing, and compatible equipment before you order.
Frequently Asked Questions
Will the PS20 work in an irregularly shaped pond?
It may, but pond shape affects diffuser placement. Narrow sections, coves, and isolated areas can require additional circulation points. We recommend reviewing the pond layout before relying on maximum acreage ratings.
Can I place the cabinet away from the pond?
Yes. A remote cabinet installation can use appropriately sized direct-burial airline between the cabinet and shoreline. Direct-burial tubing and any additional fittings needed for that arrangement are sold separately.
Is the PS20 suitable for a 50-foot-deep pond?
The manufacturer rates the PS20 for a maximum depth of 50 feet, but its installation manual requires a separately purchased Deep Water Kit for operation deeper than 21 feet. Consult us about the complete deep-water configuration before ordering.
Will this system eliminate algae and pond muck?
Aeration supports water circulation, dissolved oxygen, and the biological processes involved in pond management. It can help reduce stagnant conditions and support muck reduction, but results depend on pond conditions and aeration is not a guaranteed standalone solution for every algae or muck problem.
Can the aeration system run continuously?
Yes. The compressor is designed for continuous duty. After completing the manufacturer's gradual startup schedule, 24/7 summer operation is recommended. Winter operation requires additional safety precautions due to thin ice and open-water hazards.
How do I know when the compressor needs attention?
Record the pressure-gauge reading after installation and monitor it during routine service. Airmax identifies approximately 5–10 PSI as a normal operating range, although the baseline varies with installation. A significant pressure change, reduced bubbles, overheating, or unusual noise indicates that inspection may be needed. Disconnect power before service.
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