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
The Kasco RobustAire 1/4 HP is the better pond aerator overall, rated 2.8 to 2.2. The Airmax Shallow Water SW20 costs $11.01 less ($1,619.99 vs $1,631).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Airmax Shallow Water SW20
#18 in Lake compressorsFull review
A shore-mounted diffused-aeration compressor rated for 0.25 acres for owners who want a US-supported brand and a weatherproof cabinet, at several times the price of generic kits.
Amazon $1,619.99$1,619.99
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every lake compressors pond aerator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Kasco RobustAire 1/4 HP | Airmax Shallow Water SW20 |
|---|---|---|
| Overall rating | 2.8/5 | 2.2/5 |
| Value 35% | 50 rated acreage not published (neutral score used) | 0 $6,479.96 per rated acre ($1,619.99) |
| Output 20% | 50 airflow not published (neutral score used) | 50 airflow not published (neutral score used) |
| Efficiency 20% | 50 airflow or watts not published (neutral score used) | 50 airflow or watts not published (neutral score used) |
| Warranty 25% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Kasco RobustAire 1/4 HP | Airmax Shallow Water SW20 | |
|---|---|---|
| Aeration | ||
| Rated for | - | 0.2 acres |
| Maximum depth | - | 6 ft |
| Power | ||
| Motor | 0.2 HP | - |
| Voltage | 120 V | - |
| In the box | ||
| Diffusers | 1 | 1 |
| Tubing | - | 100 ft |