bing tracking image
  1. RV Vents and Fans
  3. Roof Vent
  4. Vent Cover
  5. 18-1/2W x 19L Inch
  6. White
MaxxAir Standard RV and Trailer Roof Vent Cover - 19" x 18-1/2" x 9-1/2" - White

MaxxAir Standard RV and Trailer Roof Vent Cover - 19" x 18-1/2" x 9-1/2" - White

Item # MA00-933066
Our Price: $37.31
You Save: 32%
RV Vents and Fans
Orders above $99 qualify for Free Shipping
Shipping Weight: 4 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
UV-resistant cover installs over your roof vent so you can open the vent and operate the fan in any weather. Removable bug screen keeps insects out. Zero-Leak mounting brackets and hardware eliminate the need to drill into your roof for installation. Great Prices for the best rv vents and fans from MAXXAIR. MaxxAir Standard RV and Trailer Roof Vent Cover - 19" x 18-1/2" x 9-1/2" - White part number MA00-933066 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (203)
  • Q & A (0)
  • Photos
  • Why etrailer?

MAXXAIR RV Vents and Fans - MA00-933066

  • Roof Vent
  • Vent Cover
  • 18-1/2W x 19L Inch
  • White

UV-resistant cover installs over your roof vent so you can open the vent and operate the fan in any weather. Removable bug screen keeps insects out. Zero-Leak mounting brackets and hardware eliminate the need to drill into your roof for installation.


  • Roof vent cover for your RV or camper enables you to open the vent and operate the fan in any weather
    • Allows air to circulate at all times, even when you're away or sleeping
    • Keeps rainwater from entering and damaging RV interior
    • Prevents heat buildup
  • Angled louvers on the back of the cover allow smoke, odors, and stale air to escape
  • Removable bug screen behind the louvers helps keep out insects and debris
  • Durable, high-density polyethylene construction is UV resistant
    • Translucent material lets some light through
  • Sleek, aerodynamic design reduces wind resistance
  • Zero-Leak mounting system prevents leaks by eliminating the need to drill into the roof of your RV or trailer
    • Mounts on frame of roof vent - drilling may be required
    • Includes all hardware needed for installation
  • White color
  • Made in the USA


  • Application: designed to fit over most standard 14" x 14" roof vents
  • Overall dimensions: 19" long x 18-1/2" wide x 9-1/2" tall
  • Inside dimensions: 18" long x 16-1/4" wide x 9" tall
  • Vent area dimensions: 13-3/8" wide x 5-7/8" tall
  • 6-Year limited warranty

Measurements of Mounting Points for MaxxAir Standard


  • Some vents may not open fully when used with this vent cover. If opened 50% or more, the vent will still achieve maximum airflow.
  • This vent cover should not be used with high-powered ventilator fans like MaxxFan, MaxxFan Plus, ShurFlo Fan, or Fantastic Fan.

MaxxAir Standard Installed Over Open MaxxFan

The MaxxAir standard vent cover installs over your roof vent so that the vent can be opened and the fan can be operated in any weather. This prevents heat from building up inside your RV or trailer and allows smoke and stale air to escape, while also keeping rainwater and debris out. A removable bug screen behind the louvered area helps prevent insects from getting in. Zero-Leak brackets are included for installation.

Zero-Leak Mounting Kit

The Zero-Leak installation kit included with this vent cover prevents leaks by eliminating the need to drill into the roof of your RV or trailer.

Installed ZeroLeak Kit

Instead of mounting to your roof, this vent cover mounts to the frame of your roof vent. Simply drill 4 holes into the vertical frame of your roof vent so that you can install the Zero-Leak mounting brackets. These holes will be hidden underneath the vent cover once it is installed, where they will be protected from the elements.

If you are installing this vent cover over a Ventline E-Z Lift Ventadome roof vent, then drilling is not required. The E-Z Lift vent has mounting tabs with pre-drilled holes for installing the included hardware.

The kit comes with rustproof aluminum brackets and stainless steel screws, bolts, nuts, and washers.

Durable Construction

Durable Construction of MaxxAir Standard

This vent cover is constructed of durable, high-density polyethylene. Special additives help ensure that the material can resist the negative effects of UV rays. And the cover is translucent so that some natural light can shine through.

00-933066 Max Air Original Camper Roof Vent Cover - White

Replaces 64643

Installation Details MA00-933066 Installation instructions

Customer Satisfaction Score:

Customer Reviews

MaxxAir Standard RV and Trailer Roof Vent Cover - 19" x 18-1/2" x 9-1/2" - White - MA00-933066

Average Customer Rating:  4.8 out of 5 stars   (203 Customer Reviews)

UV-resistant cover installs over your roof vent so you can open the vent and operate the fan in any weather. Removable bug screen keeps insects out. Zero-Leak mounting brackets and hardware eliminate the need to drill into your roof for installation.


Haven’t had a chance to install but arrived missing carriage bolts on one unit. One neatly packaged and attached the other scattered throughout the box. No damage to the box from shipping. It appears to have been packed at the warehouse that way.

We recently sent you a new hardware and were wondering if you had any feedback about the the vent cover for other shoppers?
-- Etrailer Expert Jenny N - 10/05/2022


etrailer has always been great. Product is packaged and mailed in safe,sturdy boxes, always on time, everytime just like they promised. I really like using etrailer more than other suppliers


We needed some MaxxAirs for a new 5th wheel that we purchased. We knew from having them on a previous camper that they are good products.
eTrailer has been a trustworthy place to order and get knowledgeable information from in the past. I had found a really good deal on the MaxxAirs at a different site, and contacted eTrailer. They stuck to their 110% price match policy and beat the other price.
Quick shipping and good service on top of the best price. Can't beat it!

It has continued to work well. Glad we we bought them...
Scott L - 02/20/2018


It arrived early, and I installed it myself the same day. I’m very happy to have this on my trailer and be able to use my roof vent when it’s raining and blowing. My roof vent won’t blow up with the wind, and cause my rug and bathroom to be rained on. I’m so happy!


This was a breeze to install. I did bring my tool bag with everything i needed, but only had to go down once to slightly close the lid as it was to open. I was in the midst of washing clothes so had my timer on already so I was able to note how long it took. it didn't even take more then 15minutes to install maybe faster on my next one as i was moving slow. Thank you E-trailer for the how-to videos. I'm sure my father was smiling down from heaven seeing his little girl taking care of the RV on her own. <3
So satisfied with the product I am ordering a few more for my other vents


I had to return my original purchase because I bought the wrong item. Carol was quick to replace the correct one. It was so easy to install. I may have to do my other vent covers in the spring. Great company to deal with.


These MaxxAir vents are great, easy to install. Should come standard on RVs.


I have used these before, and the pair I installed a year ago has held up very well in the weather. I used less expensive brands, and they deteriorated to the point of extreme fragility within a couple of years. I have two standard cheap fans, not Fantastic Fans. The fan shrouds don’t open quite completely under the covers, but the slightly reduced ventilation area is minimal. This limitation is far outweighed by the ability to open the fan shrouds when it’s raining.

I recommend these to everyone wanting a vent cover, and that should be everyone who owns an RV. I do not understand why manufacturers do not make vent covers original equipment.


The max air vent covers are the best. Easy installation and are screened which not only helps keep the bugs out but also helps stop the rain. Should keep the camping hauler a little cooler and drier. The tarp is just to keep the sun off.


These were pretty easy to install. Thankful we can keep the vents open when it rains. Have to close them sometimes when it rains hard, or when it's a blowing rain, but we've never had to close them completely.
I am thankful the website provides as much information as it does. Otherwise, I would have bought the wrong cover for the Northern Breeze powered vent.


Went on easily, covered old crank-out vent well. Can leave them open in the rain for trailer ventilation.


E-Trailer comes through again. I bought with confidence here after making a few previous and flawless purchases. This time the box was short one vent cover, a quick email with pictures of box and a phone call and my missing cover was on its way. Thanks for the quick painless resolution.

As for the covers, plastic as most things these days but installed with confidence knowing they would do their job. Install was easy and straight forward even with my Lance 1575 "no walk on roof". Sat on edge and was able to do what needed to get done-center cover over vent, mark holes, drill holes, put brackets in place and bolt down. Easy as it gets and now fresh air in the rain is a crank turn or two away.

The wife and I made a weekend of this and sealed roof while up there. Camping season, we are ready. Thanks E-trailer and MaxAir!!


I am pretty happy with these! Ordered two, installed just fine on the enclosed trailer.
NOTE!!! The "screen" that came with them is not the one pictured, its a course plastic screen, holes are like 3/16" square, not expected, but I am ok with it.


These covers are a savior for RV's - they help keep rain out while allowing air to flow through an open vent.
They are made of great quality and come with needed hardware for simple installation


The instruction page told me what the web page didn't - this is not the cover for a Fantastic Fan like I have in my 2002 Casita. :(

But I had already received it and I'm in a rural area so sending it back isn't easy.

So I took the Fantastic Fan's vent cover off since it wouldn't open up all of the way and took the control panel off to put the mounting bracket screws through.

It appears that it will work now, but I'll have to rig up an indoor cover for cold weather. The FF cover let out lots of heat anyway so I'll make some kind of insulated cover.


Looks to be of nice quality.
Easy installation,
looks nice.

After a year of Northern Minnesota conditions, they, 1 have 2, are still holding up and looking great!
William - 07/28/2022


easey to install takes longer to climb up and down on the camper, bad knee


Thank you the new vent covers were easy to install and it went very well. Had all e done in 15 min.


Took about 20 minutes to install. Easy .it should be a good add on for my 2021 Forest River 17JG. Once again great customer service. .


Very nice to have the vents open when it’s raining!


etrailer has the right products at a good price. Their product descriptions are clear. They shipped my order within a few days of placing it. I got it the day they said.

I will use them again!


Thanks again Kimberly good products and good prices and good service and good people you can’t go wrong at etrailer


very easy order processing and prompt d elivery


Delivered quickly and product is already installed.
Fits great. Thank you for having all the helpful info in your website. Allows me to leave vents slightly open during summertime storage without worry of rain


Great product but could use a lot better packaging, they used a very odd shaped box that was not even close to big enough for the product.

Show More Reviews

See what our Experts say about this MAXXAIR RV Vents and Fans

  • Availability of Replacement and Upgrade Parts for 2002 Holiday Rambler Alumascape Travel Trailer
    The series name for a travel trailer (and the specific trailer's VIN) are helpful when communicating with the trailer's original manufacturer but in terms of finding replacement parts you really do not need these. This is because most trailer makers do not maintain records of smaller component parts, such as wheel bearings for example, that are used in fabrication of their trailers. So finding replacements for worn items - or even upgrades - will just be a matter of telling us what you...
    view full answer...
  • Does Maxx Air Vent Cover # MA00-933066 Let in Quite a Bit of Light
    For the roof vent covers like the part # MA00-933066 they all let in quite a bit of light but the smoke color let's in the most. This cover though is only available in white.
    view full answer...
  • Can Maxxair Roof Vent Cover MA00-933066 Fit Forest River R-Pod 178
    On the Forest River R-Pod 178s the center section of the roof is fairly flat so if a standard 14 x 14-inch roof vent is installed then you should not have any trouble installing a vent cover like the MaxxAir # MA00-933066. This cover attaches to the existing vent assembly, NOT to the trailer's actual roof surface, so you do not need to drill holes in the camper's roof. Slight curvature of the roof will not prevent installation since the cover connects to the existing vent. You can refer...
    view full answer...
  • Can Vent Lid be Open When Travelling with Install of MaxxAir Standard Roof Vent Cover
    Yes when the MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 is installed you can have the roof vent underneath it when travelling. That's one of the great things about covers like this. I attached an install video for this for you to check out as well.
    view full answer...
  • What Vent Lid Cover Can be Used with Unknown Vent in Hitchhiker 5th Wheel
    We have the MaxxAir vent cover part # MA00-933066 which is designed to fit all of the standard RV roof vents out there so it would be the best choice I can give you without knowing more info from you. I attached a review video for this that shows how it installs as well. We have some vent covers which are vent model specific but I'd need to know for sure what vent you have now.
    view full answer...
  • Will MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 Survive Hail
    While the MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 isn't designed specifically to be hail resistant if you found yourself in a hail situation where the hail was big enough to damage the cover you'd also be damaging the roof of the trailer.
    view full answer...
  • Picking Out Roof Vent for 2004 Alumascape Travel Trailer
    Most likely we have what you are looking for but you will need to first determine what vent you have on your trailer. The best way to find the correct replacement vent cover for your cargo trailer is to measure the vent. Most standard vents are 14-1/4 by 14-1/4 inches wide, 14 x 14 inches wide or 13 x 14 inches wide. Next if the manufacturer name is on the vent that will help. Finally, you will need to look closely at the hinged portion of the vent. If there is a rolled metal hinge attached...
    view full answer...
    Image 1 for
  • Would MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 Interfere with Wifi Extender
    The MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 would not interfere with a Wifi extender like the one you mentioned at all.
    view full answer...
  • 15 x 15 RV Vent Cover Replacement Recommendation
    The closest we carry to 15" x 15" would be the MaxxAir Standard RV and Trailer Roof Vent Cover - 19" x 18-1/2" x 9-1/2" - White Item # MA00-933066. This cover goes over the vent unit completely to allow you to use the vent in any weather. The inside dimensions are 18" long x 16-1/4" wide x 9" tall so you won't have an issue putting it over your 15" x 15" vent.
    view full answer...
  • Recommended Bug Screen Option For Heng's Vortex Fan Upgrade
    What you have is a Heng's Vortex Add On Fan. This fan was put in to replace the smaller Ventline fan that originally came on your camper. I recommend installing a MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 over your vent lid. This cover has a bug screen in the louvered vents that will keep insects out of your camper. It will also allow you to leave the vent lid open in the rain and when traveling with your camper. The will reduce the build up of stale humid air that...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for
  • Recommended Roof Cover For A 16" x 16" RV Roof Vent
    We do not carry vent lid covers in a 16" x 16" size but we do carry the MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 which will fit over your roof vent and protect your camper from the elements. This UV-resistant cover installs over your roof vent so you can open the vent and operate the fan in any weather and while driving down the road. it comes with a removable bug screen that keeps insects out and has a sleek, aerodynamic design that reduces wind resistance.
    view full answer...
  • Screen For Keeping Out Insects Compatible with V771232-C Heng's Roof Vent
    I recommend installing a MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 on the roof of your RV as it has a bug screen built in that will keep out bugs. We currently do not have a screen that is confirmed to fit the V771232-C Heng's roof vent.
    view full answer...
  • Recommended White MaxxAir Standard Air Vent Cover
    It sounds like you're looking for the # MA00-933066, which is the white version of the # MA00-933069 and measures the same 19" x 18-1/2" x 9-1/2".
    view full answer...
  • Maxxair Vent Covers Compatible with Zero Leak Hardware Kit MA00-225000
    The MaxxAir Zero Leak Hardware Kit # MA00-225000 that you referenced is the only such kit we offer. It can be used with vent covers MA00-933066, MA00-933067, MA00-933068, or MA00-933069 which do vary slightly in size. Part # MA00-933066, for example, measures 19-1/2L x 18-1/2W while cover # MA00-933067 measures 18-3/4L x 19W Inch. I went to our warehouse to measure these brackets for you. They are 1-1/2-inches wide and the two ends of the "L" are 1-inch and 2-7/8-inches long.
    view full answer...
  • Does MaxxAir Roof Vent Lid # MA00-933066 Fit Vent # MA00-04301M
    The MaxxAir Standard RV trailer roof vent part # MA00-933066 is designed to fit standard RV roof vents like the MaxxFan part # MA00-04301M that you referenced.
    view full answer...
  • Trailer Roof Vent Cover for MaxxAir
    We have the MaxxAir Standard RV and Trailer Roof Vent Cover, # MA00-933066 in white. This has overall dimensions of 19" long x 18-1/2" wide x 9-1/2" tall.
    view full answer...
  • Recommended Lid/Cover for MaxxAir Elixir RV Roof Vent
    The Replacement Lid for Ventline and Elixir RV Roof Vents part # CAM40161 measures 14-3/4" x 14-3/4" when measuring from the outside of each edge. I have attached a review video for you with these dimensions. That said, the Replacement Lid for Ventline and Elixir RV Roof Vent is designed to replace a lid not cover the actual lid. If you are instead looking for a cover we have the MaxxAir Standard RV and Trailer Roof Vent Cover part # MA00-933066 which would fit over a MaxxAir Elixir Vent...
    view full answer...
  • Will The MaxxFan Roof Vent w/ 12V Fan Work With The MaxxAir Standard RV and Trailer Roof Vent Cover?
    Yes, the MaxxFan Roof Vent w/ 12V Fan - Manual Lift - 4 Speed # MA00A04301K will work great with your MaxxAir Standard RV and Trailer Roof Vent Cover # MA00-933066 without modification. Your existing cover is designed to work with standard 14" x 14" roof vents, which # MA00A04301K is. This roof vent has a 12v fan with 4-speeds, a manual lift design with a knob as well as a bug screen that'll keeps insects out while still allowing air flow.
    view full answer...
  • How to Pick Out Replacement Hardware for Maxxair Vent Covers
    You didn't mention what kind of MaxxAir vent hood you bought, but if it matches the picture I attached in shape (not color as there are a few options), the hardwdare kit part # MA10A20115 that you referenced would be the correct kit. If instead you got the standard MaxxAir vent cover like the part # MA00-933066 you'd want the # MA00-225000.
    view full answer...
    Image 1 for
  • Vent Cover for a Ventline E-Z Lift Ventadome Trailer Roof Vent V3094-603-00
    We do have the MaxxAir standard vent cover, # MA00-933069, since the MaxxAir II doesn't work with vent # V3094-603-00. The cover is also available in white # MA00-933066. From what I could find these are the only two that will work.
    view full answer...
  • Recommended Vent Cover for Ventline E-Z Lift Ventadome Trailer Roof Vent
    For the Ventline E-Z Lift Ventadome Trailer Roof Vent # V3092-601-00, I recommend the MaxxAir Standard RV and Trailer Roof Vent Cover - 19" x 18-1/2" x 9-1/2" - White # MA00-933066. This cover will allow for full vent function and also allow the vent to be open when traveling or camping in the rain. This is also available in smoke # MA00-933067. These covers will not require any additional mounting location but utilize the vent itself.
    view full answer...
  • Which Vent Cover To Use with Ventline E-Z Lift Ventadome # V3092-601-00
    For a vent cover to use with the Ventline E-Z Lift Ventadome # V3092-601-00 so that you can attach to the four mounting brackets of the vent you would want to use one specifically designed for it. For that you would want the MaxxAir Cover part # MA00-933066.
    view full answer...
  • Replacement Ventline And MaxxAir Covers For RV Roof Vent
    Part # BV0554-03 is a smoke colored vent cover for Ventline old style rounded vents. You want to make sure the hinge on the # BV0554-03 matches the vent you have on your trailer. The covers we offer for the Maxxair standard vents are part # MA00-933067 for the smoke colored, and # MA00-933066 for white. As far as the smoke allowing in more light we have not been given those stats. The White cover is a more translucent cover and the smoke colored cover is a more transparent cover.
    view full answer...
    Image 1 for
  • All Weather RV Vent Covers
    We have a few options for vent cover that will work to keep the rain out. Without knowing the dimensions of your RV's vent it is hard to narrow that down. I have included a few options you can take a look at. If you want to provide me with your RV's information, more specifically the vent type and dimensions I would be happy to help you narrow to the best option for your needs. Fan-Tastic Vent Ultra Breeze Trailer Roof Vent Cover # FVU1500BL MaxxAir FanMate RV and Trailer Roof Vent Cover...
    view full answer...

< Previous

Do you have a question about this RV Vents and Fan?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate rv vents and fan information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Joshua S
Video by:
Joshua S
Employee Zach D
Video by:
Zach D
Employee Jonathan Y
Video by:
Jonathan Y
Employee Kathleen M
Installed by:
Kathleen M
Employee Mary E
Updated by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Manda E
Updated by:
Manda E
Employee Jacob W
Written by:
Jacob W
Employee Shane H
Test Fit:
Shane H
Employee Ryan G
Test Fit:
Ryan G

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924