HQUA PAS20 Pond Aeration System
#14 in Lake compressorsFull review
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.
Amazon $549.99$549.99
The HQUA PAS20 Pond Aeration System is the better pond aerator overall, rated 2.8 to 2.2. The HQUA PAS20 Pond Aeration System leads on value. The HQUA PAS20 Pond Aeration System costs $1,070 less ($549.99 vs $1,619.99).
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
Which should you buy?
- Choose the HQUA PAS20 Pond Aeration System for value ($183.33 per rated acre ($549.99) vs $6,479.96 per rated acre ($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 | HQUA PAS20 Pond Aeration System | Airmax Shallow Water SW20 |
|---|---|---|
| Overall rating | 2.8/5 | 2.2/5 |
| Value 35% | 58 $183.33 per rated acre ($549.99) | 0 $6,479.96 per rated acre ($1,619.99) |
| Output 20% | 34 4.7 CFM of air | 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
| HQUA PAS20 Pond Aeration System | Airmax Shallow Water SW20 | |
|---|---|---|
| Aeration | ||
| Rated for | 3 acres | 0.2 acres |
| Maximum depth | 65 ft | 6 ft |
| Airflow | 4.7 CFM | - |
| Power | ||
| Motor | 0.8 HP | - |
| Running amps | 6.2 A | - |
| In the box | ||
| Diffusers | 2 | 1 |
| Tubing | 200 ft | 100 ft |
| Timer | Yes | - |