For a home shop with 240 V that wants real air tool airflow without the noise of a belt drive compressor.
California Air Tools $1,150The California Air Tools 20040C is the better air compressor overall, rated 3.0 to 2.4. The California Air Tools 20040C leads on airflow, value and noise. The Ingersoll Rand Garage Mate P1.5IU-A9 costs $300.01 less ($849.99 vs $1,150).
For a 120 V garage owner who wants a long lived cast iron pump and can accept modest airflow.
Amazon $849.99Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the California Air Tools 20040C for airflow (10.6 CFM at 90 PSI vs 5.2 CFM at 90 PSI), value ($108.49 per CFM at 90 PSI ($1,150, 10.6 CFM) vs $163.46 per CFM at 90 PSI ($849.99, 5.2 CFM)) and noise (75 dB(A) vs 80 dB(A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every stationary air compressor; a clear win is highlighted. How we rank explains each one.
| Factor weight | California Air Tools 20040C | Ingersoll Rand Garage Mate P1.5IU-A9 |
|---|---|---|
| Overall rating | 3.0/5 | 2.4/5 |
| Value 30% | 51 $108.49 per CFM at 90 PSI ($1,150, 10.6 CFM) | 17 $163.46 per CFM at 90 PSI ($849.99, 5.2 CFM) |
| Airflow 25% | 84 10.6 CFM at 90 PSI | 20 5.2 CFM at 90 PSI |
| Tank 10% | 20 20 gal tank | 20 20 gal tank |
| Noise 15% | 40 75 dB(A) | 20 80 dB(A) |
| Warranty 20% | 0 1-year warranty | 50 warranty not published (neutral score used) |
Specifications
| California Air Tools 20040C | Ingersoll Rand Garage Mate P1.5IU-A9 | |
|---|---|---|
| Air | ||
| Airflow at 90 PSI | 10.6 CFM | 5.2 CFM |
| Airflow at 40 PSI | 12.8 CFM | - |
| Max pressure | 125 PSI | 135 PSI |
| Tank | 20 gal | 20 gal |
| Duty cycle | 70% | 100% |
| Pump and motor | ||
| Power | Corded electric | Corded electric |
| Motor | 4 hp, 240 V | 2 hp, 120 V |
| Running amps | 14 A | - |
| Stages | 1 | 1 |
| Oil-free pump | Yes | No |
| Build | ||
| Style | Horizontal | Vertical |
| Noise | 75 dB(A) | 80 dB(A) |
| Weight | 148 lb | 200 lb |
| Warranty | 1 year | - |
