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This cover lets you keep your vent open even in rain or snow so fresh air can move through without worrying about leaks. The wing-shaped louvers on the removable grille keep airflow strong—95 to 100 percent of what’s available—so your fan can run at full power without losing circulation. The design also blocks animals and debris while keeping the air path open.
The Ultra Breeze fully encloses your roof vent to shield it from wind damage while driving. You can leave the vent open on the highway without stressing about the lid flapping or breaking. The 23" long x 19-1/2" wide x 10-1/4" tall cover is aerodynamically shaped to cut through air and stay steady.
The white opaque thermoplastic body keeps sunlight from heating up the space below. It’s strong enough to stand up to the elements and won’t crack easily under UV exposure. The smooth white finish blends in cleanly with most rooftops.
If your vent is screwed onto the roof, installation is simple. The cover attaches through the existing screw holes using the four included mounting brackets and hardware. Just add a bead of caulk and bolt it down—no drilling required. Once the brackets are in place, you can clip the cover on or remove it in seconds for cleaning or maintenance.
This 5-lb vent cover fits all Dometic FanTastic trailer roof vents and other standard or high-powered vents with a 14-1/4" x 14-1/4" roof opening. It comes backed by a 3-year limited warranty for added peace of mind.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Fantastic vent cover one year ago for my RV that came from e-trailer was easy to install and worked out great. When it rains I didn’t have to worry about forgeting to close the vents only to find water on the bed. the vent covers are easy to clean by pulling 4 pins out to take it off. Fantastic vents are five stars. Plus, when it comes to ordering from E-Trailer, it was easy and fast shipping. Five star company.
Very easy to install. Placed over my new
Easy to install. 10 minutes. Placed over my new Fantastic vent fan.
I received the package in a timely manner and it's exactly what we discussed with your team about the proper vent covers I needed. Excellent customer service and tracking. Will buy again from your company.
George B.
8/15/2021
After a year and 7 months of traveling its holding up to my expectations. Would buy it again.
We already have 3 of these in service. Easy to install, work great. We keep the roof vents open on the trailer during warm weather and don't have to worry about rain.
Problem S.
4/26/2020
After a year they are still wonderful.
I ordered this to replace a Fantastic Fan version that blew off in a windstorm. It fits perfectly and looks good.
eTrailer.com had the best price for this particular vent cover. They also delivered promptly, so my overall experience was great. Will consider eTrailer.com in the future for parts for my 2000 Coachmen Spirit of America 248TB travel trailer.
Kurt O.
4/10/2023
Vent cover is great, functioning as intended. Provides ample protection of vent even during rain. Also, easy to install.
If you own an RV with a Fantastic fan then you need the Ultra Breeze vent cover. Perfect fit and only took about 15 mins to install. Lets you open your fantastic fan about 2/3 which is plenty.
Great price as well.
Pat L.
3/8/2022
This is still a great addition to the fantastic fan. I highly recommend it.
Product works well and installation took about an hour. Wish I'd known there was a grey version available.
Happy to find a vent that considers the roof vent lid in the open position. We used them on both vents. One with the fan and one without since the allow the vent door to be fully opened. Can be a little labor intensive to install depending on your camper roof material. Happy with this product over more popular brands.
Andy B.
12/19/2023
We have traveled over 3000 miles with the vents since their purchase. They look like new and no problems in all those miles of highway wind.
This item is listed and recomended by etrailer as the correct vent cover for the MAXXAIR Fanmate 4K series Vents. IT IS NOT! The MAXXAIR Fanmate 4K series fans have a built in mount to attach the corresponding cover to. These Are generic mount covers, that include their own mounting hardware. Even the mounting holes on this cover don't line up, and they are not the same as the MAXXAIR vent cover.
Other than that it is a decent basic vent cover.
Sierra K.
8/25/2021
Thank you for the clarification. This is a universal replacement not an exact model replacement so some modifications may be needed.
had issues with order originally however e trailer made it all right in the end. thank you e-trainer.
So...after reading other reviews I picked this item at random. I'm happy with the overall construction...seems to be a bit heavier (thicker, stronger maybe) plastic. The included instructions were a bit vague, with not very helpful pictures. It's mostly a no-brainer anyway. Simple install and I really like that it 's so easy to remove. (for cleaning or whatever reason. I was concerned that it's not sealed to the roof, but my concern turned out to be unfounded. The day after installing 2 units I was in a heavy downpour while driving on the highway. I opened both vents(one of them a Fantastic Fan) and never got one drip. REALLY nice to be able to open the vents when it's raining. We all know how stuffy it can get. Sold! We'll see how well they hold up to our Arizona sun.
Good price from e trailer...my favorite retailer that I usually use was trying to get rich.
Only thing I would suggest is packaging for shipping should be better. UPS gave them their usual "dainty" handling with smashed corners, etc. but a testimony to the vents...they were undamaged.
Michael H.
7/28/2018
Great! no issues of any kind
We didn’t put it on yet but have had them before. They are nice and work well with our fantastic fan.
Prompt order responses, arrived early, arrived undamaged. We have two Fantastic vent fans that had old MaxAirIII covers that needed to be replaced. We bought two new MaxAirIII covers locally with the expectation that we could use the existing hardware, making for a 15-minute replacement. However, the new MaxAirIII covers were two inches smaller than the original covers which required replacing the mounting hardware. I mounted these in three different positions on the Fantastic fans but I couldn't get them placed without interference when the fan lid was opened. I bought these Dometic covers which installed easily. I should have bought them first instead of being lazy. The quality is great, they look great, and it's nice to be able to use the existing screws that mount the fan body to also mount the cover hardware.
Wry happy with this fan cover. We’re using it in a bit of a no -standard way, we have an A-liner hardside popup so we have to install it one direction for towing, then swap it 180 degrees before popping the trailer to the upright position. Fortunately it’s a piece of cake to do and the provided plastic connectors go in and out easily while holding it solidly in place during travel. Will those connectors wear out over time? Probably, but they’re easy to replace if so.
I ordered two of the vent covers for my fifth wheel. Based on the photos, I was concerned they may not be very durable. Upon receiving them, I was pleasantly surprised by their sturdy construction . They are very well made and solid. Installation was very simple. I only wish I had installed them sooner!
Purchased the Fantastic Fan vent cover with the fan. Installation was simple and quick. We can leave the vent open and the fan on even when it rains. Great product!
Consider purchasing the flying insect screen that snaps on to this.
This vent cover is very well made and sturdy. I watched a video showing the amount of air this cover lets the fan move, and compared to ALL the other brands, this one was exceptional letting 95% of air movement. Very Happy
Excellent customer service. Lauren was knowledgeable and professional.
Chris
1/24/2026
The vent cover turned yellow. I would not buy it again.
They covered the new rain sensor vents the way they were designed to.
The product seems well built but the mounting of the product could be better, if you resealed around your existing vent. In my case, my roof vents were resealed. When I went to mount this product I had to cut away the added sealant to mount the brackets properly. If the brackets screwed into the wall part of the existing vent I would not have to cut away the added sealant to make it work. Besides that, it seems to work fine. Just a little extra time to mount it.
Exactly what we needed. Your having details, sizing, good pictures at all angles and parts shown and listed very much helps. The more details the better.
Brooke M.
2/17/2025
Awesome! Thanks for saying so. Means a lot that it actually helps our neighbors like you when we meticulously go through and add all the specs. If there is ever any info not on the page that you think would be helpful, if you let us know, we can add it :)
Yg
2/16/2026
Very nicely! Would buy again.
Received only the vent cover without the grill, mounting hardware, or installation instructions. Just the one piece arrived in the box. Pretty useless without the other parts.
We put this on our AS so we can leave a roof vent open in the rain at camp. Moisture and humidity is a big problem in the South. The cover is pretty solid and the mounting was pretty straightforward, I didn’t need to do any major sealing to install it. And in general I’m happy with it. Two comments:
1. It’s butt ugly. It’s translucent and lets a little light in but it looks old-milk-jug yellow against the other white camper hardware. And it doesn’t look very streamlined. I spray painted it with appliance epoxy paint and it helped but it will eventually chip off.
2. The grill is supposed to have better flow, advertised as aerodynamic but I saw no evidence of that. And in a heavy rain some splashing gets through.
I’m still looking for a better retrofit, but it’s getting the job done for now.
Jeff
2/24/2026
I replaced it with a complete Maxxair fan that has a low profile and can operate in the rain.
While they appeared well made, I failed to realize when I ordered them that installing these covers requires drilling holes in the roof of the RV.
Over the years I’ve installed at least 3 sets of roof vent covers; all of them were secured by drilling holes in the vertical ‘riser’ around the roof vent opening, and attaching a L-shaped bracket that held the covers in place with no holes in the roof.
I keep holes in the roof to a minimum, and returned these Dometic covers.
Do you have a question about this RV Vents and Fan?
Condition: Missing Parts
Notes: Item is the cover only, missing everything else. Could make a great replacement.
Info for this part was:
At etrailer 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.
Skeeter
5/30/2023
Great, no problems. Working as intended & easy to remove & reinstall.