For buyers who want the features of a MaxxAir Plus 4500K at a lower price. The unknown warranty is the trade off.
Amazon $209.95
For owners who want strong two way airflow and a thermostat without paying for a motorized lid. Pair it with a separate cover if it has to run in rain.
- 900 CFMAirflow
- 10Speeds
- NoRain cover
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Ten speeds in both directions move a lot of air at a moderate price
- Thermostat switches it on and off with cabin temperature
- Takes a Fanmate cover later if you want to run it in rain
- Lid must be cranked shut by hand before rain
- No remote, so you reach the ceiling keypad every time
The MaxxAir MaxxFan Plus family
Every MaxxAir MaxxFan Plus model we rank, smallest first. Ratings compare each against its own lid.
| Model | Airflow | Rating | Price |
|---|---|---|---|
| MaxxAir Maxxfan Plus 4002K | 900 CFM | 3.1/5 | $271.21 |
| MaxxAir Maxxfan Plus 4000K (this one) | 900 CFM | 3.5/5 | $253.31 |
| MaxxAir Maxxfan Plus 4500K | 900 CFM | 3.8/5 | $338.09 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its lid. How we rank explains each one.
Specifications
| Model number | 00-04000K |
|---|---|
| Fan | |
| Airflow | 900 CFM |
| Speeds | 10 |
| Blade | 12 in |
| Reversible | Yes |
| Lid and controls | |
| Rain cover | No |
| Powered lid | No |
| Rain sensor | No |
| Thermostat | Yes |
| Remote | No |
| Light | No |
| Fit and build | |
| Roof thickness | 2 to 6.5 in |
| Warranty | 2 years |
Alternatives in this lid
For buyers who want a remote, rain sensor and light in one cheap unit. Documentation is thin, so treat the specs with care.
Amazon $174.99For owners who want the most automated Fan-Tastic in the classic housing, with a remote. Buyers who need to run it in rain should look at covered fans instead.
Amazon $400Compare
Compare the MaxxAir Maxxfan Plus 4000K with any other RV roof vent fan →
More from MaxxAir: every MaxxAir product ranked.