A big tank, low maintenance 120 V compressor for a home garage running nailers and inflation, not continuous air tools.
Amazon $599.99The Craftsman CMXECXM331 is the better air compressor overall, rated 2.7 to 2.4. The Craftsman CMXECXM331 leads on warranty, value and tank. The DeWalt DXCM251 wins on airflow. The Craftsman CMXECXM331 costs $222.72 less ($599.99 vs $822.71).
A belt drive compressor for a 120 V garage, for someone who wants a longer lasting oil pump and high tank pressure without wiring in 240 V.
Amazon $822.71Prices 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 Craftsman CMXECXM331 for warranty (2-year warranty vs 1-year warranty), value ($117.65 per CFM at 90 PSI ($599.99, 5.1 CFM) vs $132.70 per CFM at 90 PSI ($822.71, 6.2 CFM)) and tank (33 gal tank vs 25 gal tank).
- Choose the DeWalt DXCM251 for airflow (6.2 CFM at 90 PSI vs 5.1 CFM at 90 PSI).
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 | Craftsman CMXECXM331 | DeWalt DXCM251 |
|---|---|---|
| Overall rating | 2.7/5 | 2.4/5 |
| Value 30% | 44 $117.65 per CFM at 90 PSI ($599.99, 5.1 CFM) | 34 $132.70 per CFM at 90 PSI ($822.71, 6.2 CFM) |
| Airflow 25% | 19 5.1 CFM at 90 PSI | 32 6.2 CFM at 90 PSI |
| Tank 10% | 46 33 gal tank | 30 25 gal tank |
| Noise 15% | 50 noise level not published (neutral score used) | 28 78 dB(A) |
| Warranty 20% | 25 2-year warranty | 0 1-year warranty |
Specifications
| Craftsman CMXECXM331 | DeWalt DXCM251 | |
|---|---|---|
| Air | ||
| Airflow at 90 PSI | 5.1 CFM | 6.2 CFM |
| Max pressure | 175 PSI | 200 PSI |
| Tank | 33 gal | 25 gal |
| Pump and motor | ||
| Power | Corded electric | Corded electric |
| Motor | 1.7 hp, 120 V | 2 hp, 120 V |
| Running amps | - | 15 A |
| Stages | 1 | 1 |
| Oil-free pump | Yes | No |
| Build | ||
| Style | Vertical | Vertical |
| Noise | - | 78 dB(A) |
| Weight | 123 lb | 155 lb |
| Warranty | 2 years | 1 year |
