WRSTER-TECH 1/2 HP Pond Aerator
#10 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 $274.99$274.99
The WRSTER-TECH 1/2 HP Pond Aerator rates 3.0 among lake compressors pond aerators; the Kasco 1/2 HP Surface Aerator rates 2.2 among floating aerators ones. The WRSTER-TECH 1/2 HP Pond Aerator costs $1,233.01 less ($274.99 vs $1,508).
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.
Kasco 1/2 HP Surface Aerator
A 0.5 HP floating aerator from a maker with US support, for owners who want a unit built to stay in the water year round and are willing to pay for the warranty.
Amazon $1,508$1,508
Scores side by side
These two sit in different type classes (lake compressors and floating aerators), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | WRSTER-TECH 1/2 HP Pond Aerator | Kasco 1/2 HP Surface Aerator |
|---|---|---|
| Overall rating | 3.0/5 | 2.2/5 |
| Value 35% | 77 $91.66 per rated acre ($274.99) | 0 $3,016 per horsepower ($1,508) |
| Output 20% | 34 4.7 CFM of air | 20 0.5 HP motor |
| Efficiency 20% | 50 airflow or watts not published (neutral score used) | 50 flow or watts not published (neutral score used) |
| Warranty 25% | 0 warranty not published, scored as none | 25 2-year warranty |
Specifications
| WRSTER-TECH 1/2 HP Pond Aerator | Kasco 1/2 HP Surface Aerator | |
|---|---|---|
| Aeration | ||
| Rated for | 3 acres | 0.5 acres |
| Maximum depth | 50 ft | - |
| Minimum depth | - | 15 in |
| Airflow | 4.7 CFM | - |
| Power | ||
| Motor | 0.5 HP | 0.5 HP |
| Running amps | - | 5 A |
| Voltage | - | 120 V |
| Noise | 60 dB | - |
| In the box | ||
| Diffusers | 1 | - |
| Tubing | 100 ft | - |
| Power cord | - | 100 ft |
| Timer | Yes | - |
| Build | ||
| Warranty | - | 2 years |