Kasco® Robust-Aire Aeration System

Kasco® SKU: RA1-NC


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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.

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


  • 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

    PLEASE NOTE:  These Special-Order items dropship from the manufacturer. For the most current ship lead time, please see here:  Current Manufacturer's Lead Time | Best Planet (best-planet.com)

    Tips and Tricks for Robust-Aire™ Maintenance


      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
      Kasco Robust-Aire DiffuserKasco Robust-Aire Diffuser Winter-time use

      Replacement Air Filters

      Diffused Aeration Systems purchased before June of 2020:

      • Part Number 771014
      • Fits 1/4HP and 1/2HP systems

      Diffused Aeration Systems purchased after June of 2020:

      • Part Number 771018
      • Fits 1/4HP, 1/2HP, and 3/4HP systems

      Questions & Answers

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