Kasco RobustAire 1/4 HP
#12 in Lake compressorsFull review
A shore-mounted diffused-aeration compressor for owners who want a US-supported brand and a weatherproof cabinet, at several times the price of generic kits.
Amazon $1,631$1,631
2.8/5
A shore-mounted diffused-aeration compressor rated for 3 acres that comes with tubing and diffusers, for a pond or small lake where electricity is on shore.
- Lake compressorType
- 3 acresRated for
- 4.7 CFMOutput
- 0.8 HPMotor
Check price at Amazon$549.99
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Rated down to 65 ft, deeper than the other 3/4 HP kits
- Two 10 in membrane diffusers on stainless bases and 200 ft of tubing
Cons
- Costs about twice as much as the generic kits
- Warranty not published
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | PAS20 |
|---|---|
| Aeration | |
| Rated for | 3 acres |
| Maximum depth | 65 ft |
| Airflow | 4.7 CFM |
| Power | |
| Motor | 0.8 HP |
| Running amps | 6.2 A |
| In the box | |
| Diffusers | 2 |
| Tubing | 200 ft |
| Timer | Yes |
Alternatives in this type
Half Off Ponds Pro Aeration 1/2 HP
#13 in Lake compressorsFull review
A shore-mounted diffused-aeration compressor for owners who want a US-supported brand and a weatherproof cabinet, at several times the price of generic kits.
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HIBLOW HP-80 Linear Air Pump
#15 in Lake compressorsFull review
A shore-mounted diffused-aeration compressor rated for 0.5 acres that comes with tubing and diffusers, for a pond or small lake where electricity is on shore.
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