Does this one have the ability to take the vent cover off to clean if need be (without taking it completely off) like the other brand?

I'm not sure what you mean exactly. The vents have presumably already has been installed on your RV. The supplied Vent Cover brackets are screwed to the existing Vent frame. The Vent Cover itself, is then fastened to the brackets. To remove the Vent Cover, you just need to unscrew the 4 mounting screws on the roof. You don't need to disturb the existing vent or hardware. Not a big deal. Or, you can clean the vent itself by simply dropping the screen on the inside of the RV.

Does this Maxxair cover go over the existing plastic vent or does it replace it?

The Maxxair cover has hardware to attach to the existing frame under the existing cover of your vent. The hardware extends out to hold the cover without drilling into the roof and the Maxxair cover goes over the existing plastic vent on your rv. Works great. You can not open the existing vent as high but it is more than adequate for the job. No more worry about rain coming into the trailer when your not there to crank it down.

Does this work with if you have a fantastic fan, meaning it won't interfere with the fantastic fan's operation?

This model will not work with a fantastic fan. The lid on the fantastic fan cannot open completely when this is mounted on the roof. The people that are saying yes to your question must be thinking of a bathroom fan, and not a fantastic fan.

Will this keep rain out when vent open?

That’s what it’s for. So you can keep the vent open and not get rain in the camper.

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MaxxAir Original Vent Cover, White

Product ID: 3923323

Details

Brand
MAXXAIR
Color
White
Electric fan design
Exhaust Fan
Mounting Type
vent
Power Source
ac
Product Dimensions
18.5"D x 19"W

🪟Fits Standard 14x14 Vents

🌧️Zero-Leak Rain Protection

🛡️Durable UV-Resistant HDPE

Description

🚐 Elevate your RV airflow game—stay fresh, dry, and worry-free on every adventure!

AERODYNAMIC DESIGN - Sleek profile reduces wind resistance for quieter, smoother rides.
6 YEAR LIMITED WARRANTY - Confidence backed by long-term protection and quality assurance.
ZERO DRILL INSTALLATION - Exclusive mounting system means no roof damage or complicated setups.
RAINPROOF BUG RESISTANT SHIELD - Keep your RV dry and critter-free without sacrificing airflow.
UV PROTECTED HIGH DENSITY POLYETHYLENE - Built tough to withstand sun exposure and last for years.

The MAXXAIR Maxx I Original Vent Cover is a durable, aerodynamic vent cover designed to fit most 14x14 inch RV roof vents. Made from UV-protected high-density polyethylene, it prevents rain, bugs, and debris from entering while allowing stale air, smoke, and odors to escape. Featuring an exclusive Zero-Leak Mounting System, it installs easily without drilling, ensuring a secure, leak-free fit. Backed by a 6-year limited warranty, it’s the trusted choice for RV owners seeking reliable ventilation and protection.

Specifications

ASIN	B000UUMM6K
Best Sellers Rank	#513,398 in Automotive ( See Top 100 in Automotive ) #760 in RV Ventilation
Blade Length	14 inches
Blade Material	Plastic
Brand Name	MAXXAIR
Collection Name	Rv/Outdoor Fans
Color	White
Control Method	Touch
Controller Type	Button Control
Customer Reviews	4.8 4.8 out of 5 stars (8,981)
Electric Fan Design	Exhaust Fan
Finish Type	Unfinished
Global Trade Identification Number	00752055933061
Included Components	MAXXAIR Maxx I Vent Cover
Indoor Outdoor Usage	Outdoor
Installation Type	DIY (Do-It-Yourself) Installation
Item Dimensions D x W x H	18.5"D x 19"W x 8.5"H
Item Type Name	MAXXAIR Maxx I Vent Cover
Item Weight	2.9 pounds
Manufacturer	MAXXAIR
Material	High-Density Polyethylene
Model Name	MAXXAIR Maxx I Vent Cover
Model Number	00-933066
Mounting Type	vent
Number of Packs	1
Number of Power Levels	1
Part Number	00-933066
Power Source	ac
Recommended Uses For Product	Exhausting
Room Type	Bathroom, Bedroom, Dining Room, Kitchen, Living Room
Size	14x14 opening
Special Features	Bladeless
Standby Power Shutoff	allows for constant airflow and heat prevention
Style	Old
Switch Type	Push Button
UPC	700115584692 785422809720 752055933061 752055933665
Unit Count	1 Count
Warranty Description	6 years

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