Wolfbox MegaFlow24 Pro
#2 in CordlessFull review
For SUV and pickup owners who want cordless convenience without the slow fills of pocket-size inflators.
Amazon $89.99$89.99
The Wolfbox MegaFlow24 Pro rates 4.1 among cordless tire inflators; the VIAIR 400P EF rates 3.1 among heavy duty ones. The Wolfbox MegaFlow24 Pro costs $162.05 less ($89.99 vs $252.04).
VIAIR 400P EF
#9 in Heavy dutyFull review
For off-roaders on 33 to 35 in tires who air down regularly and want quicker, longer runs than a 300P without paying for a twin. It is the sweet spot of VIAIR’s portable line.
Amazon $252.04$252.04
Prices 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.
Scores side by side
These two sit in different type classes (cordless and heavy duty), 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 | Wolfbox MegaFlow24 Pro | VIAIR 400P EF |
|---|---|---|
| Overall rating | 4.1/5 | 3.1/5 |
| Value 35% | 60 $89.99 | 59 $252.04 |
| Airflow 30% | 100 45 L/min (maker) | 41 73 L/min (maker) |
| Features 20% | 85 auto shutoff, 150 PSI max | 60 runs 60 min at a time, 150 PSI max; no auto shutoff |
| Warranty 15% | 50 2-year warranty | 0 1-year warranty |
Specifications
| Wolfbox MegaFlow24 Pro | VIAIR 400P EF | |
|---|---|---|
| Inflating | ||
| Max pressure | 150 PSI | 150 PSI |
| Airflow (maker) | 45 L/min | 73 L/min |
| Auto shutoff | Yes | No |
| Duty cycle | - | 60 min on |
| Noise | - | 73 dB |
| Power | ||
| Power | Built-in battery | Battery clamps |
| Battery | 44.4 Wh | - |
| Power bank | Yes | No |
| Power cord | - | 6 ft |
| Build | ||
| Air hose | 20 in | 300 in |
| Light | Yes | No |
| Dimensions | - | 10.9 x 5.8 x 7.4 in |
| Weight | 3.1 lb | 10.3 lb |
| Warranty | 2 years | 1 year |
| Released | 2024-06 | 2024-10 |