Robust-Aire™ Diffused Aeration

NEW Kasco introduces a new offering in our trusted Robust-Aire™ Diffused Aeration product line. A first in the industry, our patent pending Aire-Guard Cabinet Technology combines an innovative approach to airflow with additional filtering to ensure cooler, cleaner air, all within our largest-ever cabinet, capable of running up to 12 diffusers.

Robust-Aire™ systems pump compressed air from a shore-mounted compressor through self-weighted lines to a diffuser on the pond, lake, or tank bottom. The diffuser then continuously releases micro-bubbles that rise to the surface carrying large volumes of water. This induces oxygen-transfer as well as beneficial water movement and mixing.

All Robust-Aire™ diffused aeration systems are available with an optional remote manifold, allowing the compressor to be installed up to a mile away from the water’s edge.

Click here to request a Robust-Aire™ custom layout.

Product Features

  • Best in depths 8 ft. and greater
  • 34% quieter than previous models
  • Large filters on compressors feature maintenance indicator alerting when cleaning is needed
  • No electricity required in the water
  • Speeds up organic decomposition
  • Creates open water, preventing ice damage
  • Designed for continuous operation

Warranty

  • Diffuser: Lifetime
  • Cabinet: Lifetime
  • Tubing: 15-years
  • Compressor: 3-years (2-years for moving parts)

Package Includes

  • Diffuser assembly
  • Compressor mounting option
  • Compressor(s)
  • Some models include tubing (see cut sheet for details)

View Robust-Aire Pricing

Post Mount Packages

Base Mount Packages

NEW - Large Cabinet Systems with Aire-Guard Cabinet Technology

No Cabinet Packages

50HZ Units (International)

Part Number
Number of Diffusers
Voltage
Phase
Compressor
Rolls of 3/8 in. Tubing (each roll is 100 ft.)
RA1-PM
1
120
1
(1) 1/4HP
1
RAH1-PM
1
208-240
1
(1) 1/4HP
1
RA2-PM
2
120
1
(1) 1/4HP
2
RAH2-PM
2
208-240
1
(1) 1/4HP
2
RA3-PM
3
120
1
(1) 1/2HP
3
RAH3-PM
3
208-240
1
(1) 1/2HP
3
Part Number Number of Diffusers Voltage Phase Compressor Rolls of 3/8 in. Tubing (each roll is 100 ft.)
RA1-PM 1 120 1 (1) 1/4HP 1
RAH1-PM 1 208-240 1 (1) 1/4HP 1
RA2-PM 2 120 1 (1) 1/4HP 2
RAH2-PM 2 208-240 1 (1) 1/4HP 2
RA3-PM 3 120 1 (1) 1/2HP 3
RAH3-PM 3 208-240 1 (1) 1/2HP 3
Part Number
Number of Diffusers
Voltage
Phase
Compressor
Rolls of 3/8 in. Tubing (each roll is 100 ft.)
RA1
1
120
1
(1) 1/4HP
1
RAH1
1
208-240
1
(1) 1/4HP
1
RA2
2
120
1
(1) 1/4HP
2
RAH2
2
208-240
1
(1) 1/4HP
2
RA3
3
120
1
(1) 1/2HP
3
RAH3
3
208-240
1
(1) 1/2HP
3
RA4
4
120
1
(2) 1/4HP
Not Included
RAH4
4
208-240
1
(2) 1/4HP
Not Included
RA5
5
120
1
(1) 1/4HP & (1) 1/2HP
Not Included
RAH5
5
208-240
1
(1) 1/4HP & (1) 1/2HP
Not Included
RA6
6
120
1
(2) 1/2HP
Not Included
RAH6
6
208-240
1
(2) 1/2HP
Not Included
Part Number
Number of Diffusers
Compressor
Voltage
Phase
Amps
RA7
7
KM-120C (1/2HP, x3)
120
1
10.5
RAH7
7
KM-120HC (1/2HP, x3)
208-240
1
5.25
RA8
8
KM-120C (1/2HP, x3)
120
1
10.5
RAH8
8
KM-120HC (1/2HP, x3)
208-240
1
5.25
RA9
9
KM-120C (1/2HP, x3)
120
1
10.5
RAH9
9
KM-120HC (1/2HP, x3)
208-240
1
5.25
RA10
10
KM-120C (1/2HP, x4)
120
1
14
RAH10
10
KM-120HC (1/2HP, x4)
208-240
1
7
RA11
11
KM-120C (1/2HP, x4)
120
1
14
RAH11
11
KM-120HC (1/2HP, x4)
208-240
1
7
RA12
12
KM-120C (1/2HP, x4)
120
1
14
RAH12
12
KM-120HC (1/2HP, x4)
208-240
1
7
Part Number
Number of Diffusers
Voltage
Phase
Compressor
Rolls of 3/8 in. Tubing (each roll is 100 ft.)
RA1-NC
1
120
1
(1) 1/4HP
1
RAH1-NC
1
208-240
1
(1) 1/4HP
1
RA2-NC
2
120
1
(1) 1/4HP
2
RAH2-NC
2
208-240
1
(1) 1/4HP
2
RA3-NC
3
120
1
(1) 1/2HP
3
RAH3-NC
3
208-240
1
(1) 1/2HP
3
50HZ Models
Cabinet
Number of Diffusers
Voltage
Compressor
RAE1-NC
No Cabinet
1
220
(1) 1/4HP
RAE2-NC
No Cabinet
2
220
(1) 1/2HP
RAE3-NC
No Cabinet
3
220
(1) 1/2HP
RAE1-PM
Post Mount Cabinet
1
220
(1) 1/4HP
RAE2-PM
Post Mount Cabinet
2
220
(1) 1/2HP
RAE3-PM
Post Mount Cabinet
3
220
(1) 1/2HP
RAE1
Base Mount Cabinet
1
220
(1) 1/4HP
RAE2
Base Mount Cabinet
2
220
(1) 1/2HP
RAE3
Base Mount Cabinet
3
220
(1) 1/2HP
RAE4
Base Mount Cabinet
4
220
(2) 1/2HP
RAE5
Base Mount Cabinet
5
220
(2) 1/2HP
RAE6
Base Mount Cabinet
6
220
(2) 1/2HP

Base Mount Systems 4-6, RAE, and new large cabinets do not include tubing. Larger compressors may be needed to achieve maximum results. For these applications, we offer our XL and DP Robust-Aire systems. Please contact us for sizing assistance.

NEW Large Systems with Aire-Guard Cabinet Technology



Compressor Cabinet Options

 



Quiet Operation

  • Sound reduction of 34% compared to existing models (patent pending)
  • Large air filters means significantly more time between cleaning
  • Visual maintenance indicator quickly alerts when air filter needs to be cleaned or changed

Read our Interview with the Engineer to get a behind the scenes look at the development and testing involved in this significant redesign project.


 

Kasco Robust-Aire Diffuser Assembly

CAD Details

Click below to access design files including cad drawings, specifications, videos and related documents for the D Series De-Icers.


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Simply The Best

It means a lot to sell and service equipment made by a company that has so much pride and confidence in what they build.

- Seth

The Highest Quality

I have been selling fountains for about 20 years and sold them all. Kasco, without a question, are the finest available.

- Chad

A+ Customer Service

Got the “trippers” last night in the mail. Thanks for the prompt and superlative service. Will look to Kasco for all my future pond needs.

- Ted

5 reviews for Robust-Aire™ Diffused Aeration

  1. mike

    A popular fishing pond located in a metro area park had experienced multiple winter fish kills. Following consultation with the staff at Kasco, we recommended a Robust-Aire System 1. The systems are simple and easy to install with limited assembly needed. The unit has performed well through our Minnesota winters and eliminated winterkill along with costly fish stocking. Robust-Aire has been an inexpensive, effective solution. Mike O’Connell – Lake Management, Inc

  2. Jim Coyle – Cogent, Inc.

    A homeowners association of approximately 170 homeowners in Overland Park Kansas has three lakes. The grounds committee chairman worked with Cogent, who consulted Kasco’s Customer Support team, towards finding a satisfactory process and solution to handle the moss on the surface of the lake as well as working towards cleaning up the muck at the bottom of the lakes.

    We presented the HOA with a very cost-effective proposal to provide Robust-Aire™ Diffused Aeration from Kasco along with Macro-Zyme Beneficial Bacteria to clean up the muck on the bottom and reduce the moss on the surface of the lake.

    The HOA grounds committee members easily installed the system. Within a few weeks, the lakes had virtually no moss and the water was cleared up satisfactorily. The HOA and neighbors provided many nice comments regarding the significant improvements.

  3. Paul Gilbert

    Installed the 1/2 hp aerator for my pond last august (10 months) have noticed no difference in algae in my pond.

    • Kasco

      Hi Paul, thank you for contacting us. Aeration alone will not kill algae and may not get rid of it quickly. The oxygen added helps to speed up the decomposition of organic nutrients in the water which feed plant life. The aeration is adding more oxygen to speed that up, but a visual difference in algae growth may not happen quickly. How deep is the pond? Is there an inflow of water coming into it? It might be helpful to look at a bacteria treatment to complement the aeration. This will increase the decomposition rate by adding billions of new bacteria to the pond to speed up processing of the nutrients and organic material. Aeration and even bacteria will not kill algae, you’d need chemical treatment to kill the algae. However, aeration and bacteria together can reduce nutrients and can eventually limit plant growth with fewer available nutrients in the water column. We would be glad to continue talking through the in’s and out’s of aeration and what might be best for your application. Give us a shout at 715-262-4488 or sales@kascomarine.com. Thanks, Paul.

  4. Don Chase

    I’ve had my system for 8 years had bad algae 2 Acer pond 16 feet deep completely clear of all algae for 8 years running outstanding product.

  5. Don Chase

    I’ve had my system for 8 years had bad algae 2 Acer pond 16 feet deep completely clear of all algae for 8 years running outstanding product.

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