MaxxAir Maxxfan Plus 4500K
#1 in Open lidFull review
For owners who want full automation in an open lid fan and do not need it to run in rain. The rain sensor, thermostat and remote make it close to set and forget.
Amazon $338.09$338.09
The MaxxAir Maxxfan Plus 4500K and the OUTPRIZE Remote Vent Fan Rain Sensor are evenly matched, rated 3.8 and 3.7. The MaxxAir Maxxfan Plus 4500K leads on features. The OUTPRIZE Remote Vent Fan Rain Sensor wins on price. The OUTPRIZE Remote Vent Fan Rain Sensor costs $198.10 less ($139.99 vs $338.09).
OUTPRIZE Remote Vent Fan Rain Sensor
#3 in Open lidFull review
For budget buyers who want a remote and rain sensor and can live with thin documentation. The airflow claim should not be taken at face value.
Amazon $139.99$139.99
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 4500K for features (reversible, powered lid, thermostat, rain protection, remote vs reversible, rain protection, remote).
- Choose the OUTPRIZE Remote Vent Fan Rain Sensor for price ($139.99 vs $338.09).
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 4500K | OUTPRIZE Remote Vent Fan Rain Sensor |
|---|---|---|
| Overall rating | 3.8/5 | 3.7/5 |
| Price 25% | 14 $338.09 | 87 $139.99 |
| Airflow 15% | 92 900 CFM on high | 32 510 CFM credited of 1,300 claimed (25 per watt drawn) |
| Speeds 10% | 100 10 speeds | 100 10 speeds |
| Features 25% | 100 reversible, powered lid, thermostat, rain protection, remote | 60 reversible, rain protection, remote |
| Warranty 25% | 50 2-year warranty | 50 2-year warranty |
Specifications
| MaxxAir Maxxfan Plus 4500K | OUTPRIZE Remote Vent Fan Rain Sensor | |
|---|---|---|
| Fan | ||
| Airflow | 900 CFM | 1,300 CFM |
| Speeds | 10 | 10 |
| Draw on high | - | 1.7 A |
| Blade | 12 in | - |
| Reversible | Yes | Yes |
| Lid and controls | ||
| Rain cover | No | No |
| Powered lid | Yes | - |
| Rain sensor | Yes | Yes |
| Thermostat | Yes | - |
| Remote | Yes | Yes |
| Light | No | No |
| Fit and build | ||
| Roof thickness | 2 to 6.5 in | 1.9 to 7 in |
| Warranty | 2 years | 2 years |