Scott Aerator DA-20 Display 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 $1,919$1,919
The Scott Aerator DA-20 Display Aerator rates 2.9 among floating aerators pond aerators; the Half Off Ponds Pro Aeration 1/2 HP rates 2.8 among lake compressors ones. The Half Off Ponds Pro Aeration 1/2 HP costs $1,140 less ($779 vs $1,919).
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.
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.
Amazon $779$779
Scores side by side
These two sit in different type classes (floating aerators and lake compressors), 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 | Scott Aerator DA-20 Display Aerator | Half Off Ponds Pro Aeration 1/2 HP |
|---|---|---|
| Overall rating | 2.9/5 | 2.8/5 |
| Value 35% | 0 $3,838 per horsepower ($1,919) | 50 rated acreage not published (neutral score used) |
| Output 20% | 20 0.5 HP motor | 18 3.9 CFM of air |
| Efficiency 20% | 50 flow or watts not published (neutral score used) | 50 airflow or watts not published (neutral score used) |
| Warranty 25% | 100 5-year warranty | 25 2-year warranty |
Specifications
| Scott Aerator DA-20 Display Aerator | Half Off Ponds Pro Aeration 1/2 HP | |
|---|---|---|
| Aeration | ||
| Airflow | - | 3.9 CFM |
| Water flow | 18,000 gal/h | - |
| Power | ||
| Motor | 0.5 HP | 0.5 HP |
| Running amps | 8 A | 3.5 A |
| Voltage | 115 V | 120 V |
| In the box | ||
| Diffusers | - | 2 |
| Tubing | - | 100 ft |
| Power cord | 70 ft | - |
| Build | ||
| Warranty | 5 years | 2 years |