ROBUSTAIRE™ DIFFUSED AERATION
RobustAire™ Diffused Aeration
AireGuard Cabinet Technology Now Available in Two Cabinet Sizes
Kasco now offers RobustAire™ systems with Aire-Guard Cabinet Technology in Large and Medium compressor cabinet sizes. Using a new approach to airflow through the cabinet, systems are safeguarded from heat, dust, and debris, and are easier to keep clean and maintain. These new systems feature completely redesigned cabinets and provide air to 4 – 12 diffuser assemblies.
Read the press releases on the Medium Cabinets and Large Cabinets to learn more.
Kasco’s RobustAire™ systems are quiet and provide great aeration benefits in depths of 8 ft. or greater. A shore-mounted compressor pushes air through self-weighted lines to a dual-loop 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 beneficial mixing increases oxygen transfer and improves water quality to eliminate thermal and chemical stratification, expand fish habitat, and more.
Warranty periods:
- Diffuser: Lifetime
- Cabinet: Lifetime
- Tubing: 15 years
- Compressor Motor: 3 years
- Compressor Piston Cups & Cylinders: 2 years
About
Funktionen
No-Cabinet Packages
Post Mount Packages
Base Mount Packages
NEW Medium Cabinet Packages
NEW Large Cabinet Packages
50HZ Units (International)
AireGuard Cabinet Technology
AireGuard Cabinet Technology tackles the biggest stressors on compressor operation: heat and dust. With this innovative design, air is immediately passed through an external filtration layer that removes excess dust and debris. Powerful fans then pull this clean air through the compressor, instead of across it, allowing the compressor to stay much cooler and operate at extreme efficiency. The dual-action filtering and air movement acts as a safeguard for the compressor motor and entire system, allowing RobustAire to provide a reliable source of mixing and movement to the water.
This technology is offered in Kasco’s new Medium and Large Cabinets that operate 4 to 12 diffuser assemblies. Both cabinet sizes feature a sleek new look, external maintenance indicators, easy-to-remove panels for scheduled maintenance, quiet operation, and a paint color that seamlessly blends with the environment.”
Cabinet Options
- No-Cabinet (1-3 diffusers)
- Post Mount Cabinet (1-3 diffusers) – For installations where compressor cabinets can be mounted above the ground
- Base Mount Cabinet (1-3 diffusers) – For installations where compressor cabinets need at ground level
- NEW Medium Cabinets (4-6 diffusers)
- NEW Large Cabinet (7-12 diffusers)
Common Applications
- Backyard ponds & lakes
- Industrie
- Mixing
- Winterkill prevention
- Waterfowl protection
AireGuard Cabinet Technology
AireGuard Cabinet Technology tackles the biggest stressors on compressor operation: heat and dust. With this innovative design, air is immediately passed through an external filtration layer that removes excess dust and debris. Powerful fans then pull this clean air through the compressor, instead of across it, allowing the compressor to stay much cooler and operate at extreme efficiency. The dual-action filtering and air movement acts as a safeguard for the compressor motor and entire system, allowing RobustAire to provide a reliable source of mixing and movement to the water.
This technology is offered in Kasco’s new Medium and Large Cabinets that operate 4 to 12 diffuser assemblies. Both cabinet sizes feature a sleek new look, external maintenance indicators, easy-to-remove panels for scheduled maintenance, quiet operation, and a paint color that seamlessly blends with the environment.”
Cabinet Options
- No-Cabinet (1-3 diffusers)
- Post Mount Cabinet (1-3 diffusers) – For installations where compressor cabinets can be mounted above the ground
- Base Mount Cabinet (1-3 diffusers) – For installations where compressor cabinets need at ground level
- NEW Medium Cabinets (4-6 diffusers)
- NEW Large Cabinet (7-12 diffusers)
Common Applications
- Backyard ponds & lakes
- Industrie
- Mixing
- Winterkill prevention
- Waterfowl protection
All RobustAire™ 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.
Packages include:
- Diffuser assembly
- Compressor mounting option
- Compressor(s)
- Some models include tubing (see cut sheet for details)
System Features:
- Great for depths 8 ft. and deeper
- 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
All RobustAire™ 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.
Packages include:
- Diffuser assembly
- Compressor mounting option
- Compressor(s)
- Some models include tubing (see cut sheet for details)
System Features:
- Great for depths 8 ft. and deeper
- 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
Product Notes:
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- System 2 (RA2-NC) is available with (1) 1/2HP compressor for more air flow. Add “-DP” to the end of any RA2-NC part number.
- No-Cabinet packages include tubing.
Teilenummer | Anzahl der Diffusoren | Spannung | Phase | Kompressor | Amps | Rolls of 3/8 in. Tubing (each roll is 100 ft.) |
---|---|---|---|---|---|---|
RA1-NC | 1 | 120 | 1 | (1) 1/4HP | 2.5 | 1 |
RAH1-NC | 1 | 208-240 | 1 | (1) 1/4HP | 1.25 | 1 |
Ra2-NC | 2 | 120 | 1 | (1) 1/4HP | 2.5 | 2 |
RAH2-NC | 2 | 208-240 | 1 | (1) 1/4HP | 1.25 | 2 |
RA3-NC | 3 | 120 | 1 | (1) 1/2HP | 3.5 | 3 |
RAH3-NC | 3 | 208-240 | 1 | (1) 1/2HP | 1.75 | 3 |
Product Notes:
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- System 2 (RA2-NC) is available with (1) 1/2HP compressor for more air flow. Add “-DP” to the end of any RA2-NC part number.
- No-Cabinet packages include tubing.
Product Notes:
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- Use this cabinet option when you need 1 – 3 diffusers and are mounting the cabinet above ground.
- System 2 (RA2-PM) is available with (1) 1/2HP compressor for more air flow. Add “-DP” to the end of any RA2-PM part number.
- Post Mount packages include tubing.
Teilenummer | Anzahl der Diffusoren | Spannung | Phase | Kompressor | Amps | Rolls of 3/8 in. Tubing (each roll is 100 ft.) |
---|---|---|---|---|---|---|
RA1-PM | 1 | 120 | 1 | (1) 1/4HP | 2.5 | 1 |
RAH1-PM | 1 | 208-240 | 1 | (1) 1/4HP | 1.25 | 1 |
Ra2-PM | 2 | 120 | 1 | (1) 1/4HP | 2.5 | 2 |
RAH2-PM | 2 | 208-240 | 1 | (1) 1/4HP | 1.25 | 2 |
RA3-PM | 3 | 120 | 1 | (1) 1/2HP | 3.5 | 3 |
RAH3-PM | 3 | 208-240 | 1 | (1) 1/2HP | 1.75 | 3 |
Product Notes:
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- Use this cabinet option when you need 1 – 3 diffusers and are mounting the cabinet above ground.
- System 2 (RA2-PM) is available with (1) 1/2HP compressor for more air flow. Add “-DP” to the end of any RA2-PM part number.
- Post Mount packages include tubing.
Product Notes:
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- System 2 (RA2) is available with (1) 1/2HP compressor for more air flow. Add “-DP” to the end of any RA2 part number.
- Use this cabinet option when you need 1 – 3 diffusers and are mounting the cabinet on the ground.
- Base Mount packages include tubing.
Teilenummer | Anzahl der Diffusoren | Spannung | Phase | Kompressor | Amps | Rolls of 3/8 in. Tubing (each roll is 100 ft.) |
---|---|---|---|---|---|---|
RA1 | 1 | 120 | 1 | (1) 1/4HP | 2.5 | 1 |
RAH1 | 1 | 208-240 | 1 | (1) 1/4HP | 1.25 | 1 |
Ra2 | 2 | 120 | 1 | (1) 1/4HP | 2.5 | 2 |
RAH2 | 2 | 208-240 | 1 | (1) 1/4HP | 1.25 | 2 |
RA3 | 3 | 120 | 1 | (1) 1/2HP | 3.5 | 3 |
RAH3 | 3 | 208-240 | 1 | (1) 1/2HP | 1.75 | 3 |
Product Notes:
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- System 2 (RA2) is available with (1) 1/2HP compressor for more air flow. Add “-DP” to the end of any RA2 part number.
- Use this cabinet option when you need 1 – 3 diffusers and are mounting the cabinet on the ground.
- Base Mount packages include tubing.
Product Notes:
- Medium Cabinet Systems 4 – 6 do not include tubing. Tubing must be ordered separately.
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- XL systems are available for applications needing larger compressors. Add “-XL” to the end of any standard or “-RM” part number.
Teilenummer | Anzahl der Diffusoren | Spannung | Phase | Kompressor | Amps |
---|---|---|---|---|---|
Ra4 | 4 | 120 | 1 | KM-120C (1/2HP x 2) | 7 |
RAH4 | 4 | 208-240 | 1 | KM-120HC (1/2HP x 2) | 3.5 |
Ra5 | 5 | 120 | 1 | KM-120C (1/2HP x 2) | 7 |
RAH5 | 5 | 208-240 | 1 | KM-120HC (1/2HP x 2) | 3.5 |
RA6 | 6 | 120 | 1 | KM-120C (1/2HP x 2) | 7 |
RAH6 | 6 | 208-240 | 1 | KM-120HC (1/2HP x 2) | 3.5 |
Product Notes:
- Medium Cabinet Systems 4 – 6 do not include tubing. Tubing must be ordered separately.
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- XL systems are available for applications needing larger compressors. Add “-XL” to the end of any standard or “-RM” part number.
Product Notes:
- Large Cabinet Systems 7 – 12 do not include tubing. Tubing must be ordered separately.
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- XL systems are available for applications needing larger compressors. Add “-XL” to the end of any standard or “-RM” part number.
Teilenummer | Anzahl der Diffusoren | Spannung | Phase | Kompressor | Amps |
---|---|---|---|---|---|
RA7 | 7 | 120 | 1 | KM-120C (1/2HP, x3) | 10.5 |
RAH7 | 7 | 208-240 | 1 | KM-120HC (1/2HP, x3) | 5.25 |
RA8 | 8 | 120 | 1 | KM-120C (1/2HP, x3) | 10.5 |
RAH8 | 8 | 208-240 | 1 | KM-120HC (1/2HP, x3) | 5.25 |
RA9 | 9 | 120 | 1 | KM-120C (1/2HP, x3) | 10.5 |
RAH9 | 9 | 208-240 | 1 | KM-120HC (1/2HP, x3) | 5.25 |
RA10 | 10 | 120 | 1 | KM-120C (1/2HP, x4) | 14 |
RAH10 | 10 | 208-240 | 1 | KM-120HC (1/2HP, x4) | 7 |
RA11 | 11 | 120 | 1 | KM-120C (1/2HP, x4) | 14 |
RAH11 | 11 | 208-240 | 1 | KM-120HC (1/2HP, x4) | 7 |
RA12 | 12 | 120 | 1 | KM-120C (1/2HP, x4) | 14 |
RAH12 | 12 | 208-240 | 1 | KM-120HC (1/2HP, x4) | 7 |
Product Notes:
- Large Cabinet Systems 7 – 12 do not include tubing. Tubing must be ordered separately.
- Remote manifold systems are available allowing installations long distances from power. Add “-RM” to the end of any part number above.
- XL systems are available for applications needing larger compressors. Add “-XL” to the end of any standard or “-RM” part number.
Product Notes:
- RAE Systems do not include tubing. Tubing must be ordered separately.
- RAE 4 – 6 systems will use the existing Base Mount Cabinets.
50HZ Models | Cabinet | Anzahl der Diffusoren | Spannung | Kompressor | Amps |
---|---|---|---|---|---|
RAE1-NC | Kein Schrank | 1 | 220 | (1) 1/4HP | 1.25 |
RAE2-NC | Kein Schrank | 2 | 220 | (1) 1/2HP | 1.75 |
RAE3-NC | Kein Schrank | 3 | 220 | (1) 1/2HP | 1.75 |
RAE1-PM | Pfosten-Einfassung Kabinett | 1 | 220 | (1) 1/4HP | 1.25 |
RAE2-PM | Pfosten-Einfassung Kabinett | 2 | 220 | (1) 1/2HP | 1.75 |
RAE3-PM | Pfosten-Einfassung Kabinett | 3 | 220 | (1) 1/2HP | 1.75 |
RAE1 | Base Mount Cabinet | 1 | 220 | (1) 1/4HP | 1.25 |
RAE2 | Base Mount Cabinet | 2 | 220 | (1) 1/2HP | 1.75 |
RAE3 | Base Mount Cabinet | 3 | 220 | (1) 1/2HP | 1.75 |
RAE4 | Base Mount Cabinet | 4 | 220 | (2) 1/2HP | 3.5 |
RAE5 | Base Mount Cabinet | 5 | 220 | (2) 1/2HP | 3.5 |
RAE6 | Base Mount Cabinet | 6 | 220 | (2) 1/2HP | 3.5 |
Product Notes:
- RAE Systems do not include tubing. Tubing must be ordered separately.
- RAE 4 – 6 systems will use the existing Base Mount Cabinets.
Links to product files including specifications,
owner’s manuals, and other related documents
for RobustAire™ Diffused Aeration.
- RobustAire Flyer
- RobustAire Large Cabinet Manual
- RobustAire Medium Cabinet Manual
- RobustAire Owner's Manual (Base Mount, Post Mount, & No-Cabinet)
- RobustAire Diffuser Assembly
- Remote Manifold Installation Instructions (RA7-12 Systems)
- RobustAire Diffuser Testing Summary
- RobustAire Diffuser SureSinkTM Tubing Instructions
- Prüfung für feine Blase Diffusoren
NEW Medium RobustAire Cabinets
Vital Mixing for Your Water
New Technology Within our RobustAire Cabinets
Cabinet Options

Kasco RobustAire Diffuser Assembly
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