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Authorized Kasco Distributor

Bottom diffused aeration

Kasco RobustAire and Home Series systems. A compressor on shore feeds diffusers on the pond bottom. We size, install, and service the system. Site visits and estimates are free.

Kasco RobustAire diffuser bubbles on a pond bottom
Kasco RobustAire diffuser (manufacturer product photo)

How bottom aeration works

Kasco Marine logo

Pond Life Consulting is an Authorized Kasco Distributor. RobustAire and Home Series systems mix water from the bottom up. Nothing decorative has to sit on the surface.

  • Compressor on shore

    A shore-mounted compressor pushes air from land. The cabinet sits on the bank, not in the pond.

  • Weighted tubing

    Self-weighted lines run from the compressor to the pond bottom.

  • Diffusers on the bottom

    Diffusers on the pond bottom release the air. The rising bubbles lift and mix the water from the bottom up.

  • Oxygen, less muck and odor

    Mixing adds oxygen through the water column. That helps cut muck, algae, and odor. There is no electricity in the water.

AquaMaster diagram comparing a stratified pond without aeration to a circulating pond with diffused aeration
AquaMaster diagram: a pond with and without diffused aeration (manufacturer image)

Kasco RobustAire

RobustAire is the main Kasco diffused-aeration line. The shore-mounted compressor pushes air through self-weighted lines to a diffuser at the bottom of the pond. Cabinets come in small, medium, and large sizes. No-cabinet, post-mount, and base-mount packages are also listed.

Kasco RobustAire small compressor cabinet
Kasco RobustAire small cabinet (manufacturer product photo)
Kasco RobustAire medium compressor cabinet
Kasco RobustAire medium cabinet (manufacturer product photo)
Kasco RobustAire large compressor cabinet on a pond bank
Kasco RobustAire large cabinet (manufacturer product photo)
Kasco RobustAire dual-loop diffuser assembly on land
Kasco RobustAire diffuser (manufacturer product photo)
Kasco RobustAire large-cabinet distribution manifold
Kasco RobustAire cabinet (manufacturer product photo)

Small, medium, and large cabinets

AireGuard cabinets in three sizes. Small cabinets cover 1–3 diffusers, medium 4–6, and large 7–12.

No-cabinet

Systems without a cabinet enclosure are available. They include a mounting bracket and a cooling fan.

Post-mount

Post-mount cabinets are available. Contact us and we will check the Kasco options for the site.

Base-mount

Base-mount cabinets sit on a ground pad. RA1–RA6 packages and XL packages are listed on the base-mount cut sheet.

RobustAire packages

Model numbers are RA (120V) and RAH (208–240V). Figures are from the Kasco RobustAire 2026 flyer.

System 120VSystem 208–240VCabinetDiffusersCompressorWeighted tubing
RA1RAH1Small1(1) 1/4HP100 ft. 3/8 in. tubing
RA2*RAH2*Small2(1) 1/4HP200 ft. 3/8 in. tubing
RA3RAH3Small3(1) 1/2HP300 ft. 3/8 in. tubing
RA4RAH4Medium4(2) 1/2HPNot included
RA5RAH5Medium5(2) 1/2HPNot included
RA6RAH6Medium6(2) 1/2HPNot included
RA7RAH7Large7(3) 1/2HPNot included
RA8RAH8Large8(3) 1/2HPNot included
RA9RAH9Large9(3) 1/2HPNot included
RA10RAH10Large10(4) 1/2HPNot included
RA11RAH11Large11(4) 1/2HPNot included
RA12RAH12Large12(4) 1/2HPNot included
  • *RA2 and RAH2 systems are available with a 1/2HP compressor. Contact Kasco for details.
  • RA1–RA3 systems can be mounted off the ground with the available mounting bracket. Bracket sold separately.
  • All systems are available as a remote manifold for long-distance installations. Manifold sold separately.

RobustAire warranty

  • Lifetime warranty on diffuser and cabinet
  • 15-year warranty on weighted tubing
  • 3-year warranty on compressor motor
  • 2-year warranty on compressor piston cups and cylinders

Kasco Home Series

Home Series is the backyard line: a shore-mounted compressor, cabinet, diffuser(s), and weighted tubing. The 2026 flyer lists it as ideal for ponds up to 2 acres and with less than 20 ft. of depth. Models are DA (120V) and DAH (208–240V).

Kasco Home Series compressor cabinet
Kasco Home Series cabinet (manufacturer product photo)
Kasco Home Series single-loop diffuser
Kasco Home Series diffuser (manufacturer product photo)
Kasco Home Series cabinet, tubing, and diffuser on a pond bank
Kasco Home Series diffused aeration (manufacturer product photo)

Home Series packages

Part numberDiffusersCompressorVolt (V)Weighted tubing
DA111/4HP120(1) 100 ft. roll 3/8 in. tubing
DAH111/4HP208-240(1) 100 ft. roll 3/8 in. tubing
DA221/4HP120(2) 100 ft. rolls 3/8 in. tubing
DAH221/4HP208-240(2) 100 ft. rolls 3/8 in. tubing

Home Series sizing

Pond size and depth recommendations from the Home Series 2026 flyer. The DA1 column for 2 acres is blank on the flyer.

Pond sizeDA1 pond depthDA2 pond depth
1/4 acre6–8 ft.3–6 ft.
1/2 acre9–12 ft.6–8 ft.
1 acre13–20 ft.9–12 ft.
2 acres—13–20 ft.

Home Series warranty

  • Lifetime warranty on diffuser
  • 15-year warranty on weighted tubing
  • 2-year warranty on cabinet, compressor, and all external parts

Free estimate

We size the system to the pond, install it, and service it. Site visits and estimates are free. Call Blaine at (317) 432-3595, or request a quote.

Product names and specifications are from Kasco Marine flyers and cut sheets. See kascomarine.com. Other Kasco equipment is on the Kasco products page.

Request a diffused aeration quote

Call Blaine. We size, install, and service Kasco RobustAire and Home Series systems.