MaxxAir Maxxfan Plus 4002K
#9 in Open lidFull review
For buyers who find it cheaper than the 10 speed Plus 4000K at the time of purchase; otherwise the 4000K does the same job with finer speed control.
Amazon $271.21$271.21
The MaxxAir Maxxfan Plus 4002K is the better RV roof vent fan overall, rated 3.1 to 2.4. The MaxxAir Maxxfan Plus 4002K leads on features. The Dometic Fan-Tastic Vent FA25 Essential wins on speeds. The Dometic Fan-Tastic Vent FA25 Essential costs $21.22 less ($249.99 vs $271.21).
Dometic Fan-Tastic Vent FA25 Essential
#14 in Open lidFull review
For buyers fitting a new roof opening who want the DryDock base so they can upgrade later. Today it is a basic manual fan for its price.
Dometic $249.99$249.99
Prices were last checked November 2, 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 MaxxAir Maxxfan Plus 4002K for features (reversible, thermostat vs reversible).
- Choose the Dometic Fan-Tastic Vent FA25 Essential for speeds (5 speeds vs 4 speeds).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every open lid RV roof vent fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | MaxxAir Maxxfan Plus 4002K | Dometic Fan-Tastic Vent FA25 Essential |
|---|---|---|
| Overall rating | 3.1/5 | 2.4/5 |
| Price 25% | 32 $271.21 | 39 $249.99 |
| Airflow 15% | 92 900 CFM on high | 50 airflow not published (neutral score used) |
| Speeds 10% | 14 4 speeds | 29 5 speeds |
| Features 25% | 45 reversible, thermostat | 25 reversible |
| Warranty 25% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| MaxxAir Maxxfan Plus 4002K | Dometic Fan-Tastic Vent FA25 Essential | |
|---|---|---|
| Fan | ||
| Airflow | 900 CFM | - |
| Speeds | 4 | 5 |
| Draw on high | - | 3 A |
| Blade | 12 in | - |
| Reversible | Yes | Yes |
| Lid and controls | ||
| Rain cover | No | No |
| Powered lid | No | No |
| Rain sensor | No | No |
| Thermostat | Yes | No |
| Remote | No | No |
| Light | No | No |
| Fit and build | ||
| Roof thickness | 2 to 6.5 in | - |
| Weight | - | 11.9 lb |
| Warranty | 2 years | - |