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  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: $54.11
RV Vents and Fans
Shipping Weight: 4 lbs
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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.
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  • Reviews (223)
  • Q & A (0)
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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.

00-933051 Max Air Original Camper Roof Vent Cover - White

Replaces 64643 and 00-933066

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   (223 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.


Before I installed both vent covers I took picks and then the installed both took about an hour and a half. Everything worked out great as a matter of fact I can open both vent tops all the way. Here are some picks. All installation instructions were dead on Video was the best. Thanks ,job well done on both ends.


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.

Etrailer Expert

Jenny N.


We recently sent you a new hardware and were wondering if you had any feedback about the the vent cover for other shoppers?


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!

Scott L.


It has continued to work well. Glad we we bought them...


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


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.


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.


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!!


The Vent cover arrived promptly, and was packaged very well. We have not yet installed it but intend to do so soon.


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.


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


Great fit and product Excellent service and shipping


The roof vent cover for our Fantastic Fan has been an excellent buy. Etrailer was very easy to work with and very accommodating. It w quite easy to install, looks nice and it protects the vent from wind and rain when open. Highly recommend it!


Great product, great quality


looked for some time trying to find the right part. We are restoring our 94 Allegro Bay. The parts person at Allegro refered us to you. Great move on his part. thanks again!





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


Delivered in a timely manner. Very good product and fit.


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.


Great for the price


Performed as expected on our first trip, keeping out rain with the vent open. Install was straightforward.


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.


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!


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


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


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.


Fast shipping and easy to install product on my RV. Looks great will buy again.

James M.


Very well

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