2-Piece Exterior Wall Vent for Enclosed Trailers - Polypropylene - 3" Diameter Hole - Black

Part Number: HMAV2-AVT2

In Stock

$23.04

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

redline rv vents and fans no fan plastic 2-piece exterior wall vent for enclosed trailers - polypropylene 3 inch diameter hole black

redline rv vents and fans no fan plastic hmav2-avt2

redline rv vents and fans wall vent plastic hmav2-avt2

redline rv vents and fans vent no fan 2-piece exterior wall for enclosed trailers - polypropylene 3 inch diameter hole black

redline rv vents and fans wall vent no fan

redline rv vents and fans wall vent no fan hmav2-avt2

redline rv vents and fans vent plastic 2-piece exterior wall for enclosed trailers - polypropylene 3 inch diameter hole black

Show All (8) Product Images

Show Fewer Product Images

In Use/Installed

0 rv vents and fans redline vent plastic in use

0 rv vents and fans redline wall vent no fan hmav2-avt2

0 rv vents and fans redline no fan plastic hmav2-avt2

0 rv vents and fans redline wall vent no fan in use

0 rv vents and fans redline vent no fan hmav2-avt2

0 rv vents and fans redline wall vent plastic hmav2-avt2

0 rv vents and fans redline vent no fan 2-piece exterior wall for enclosed trailers - polypropylene 3 inch diameter hole black

0 rv vents and fans redline vent wall 2-piece exterior for enclosed trailers - polypropylene 3 inch diameter hole black

Show All (8) In Use/Installed

Show Fewer In Use/Installed

Customer Photos

2-Piece Exterior Wall Vent for Enclosed Trailers - Polypropylene - 3" Diameter Hole - Black customer photo

Show All (36) Customer Images

Show Fewer Customer Images

Videos

Replacement Round Interior Trailer Vent for 3" Diameter Hole: The Breakdown

Breaking Down the 2-Piece Exterior Wall Vent for Enclosed Trailers

Show All (2) Videos

Show Fewer Videos

Need help with installation?

Locate installers near me

This 2-piece vent provides an inexpensive yet attractive way to ventilate your enclosed trailer. Round interior vent and half-moon-shape exterior piece are both constructed of black, UV-resistant polypropylene plastic that holds up to sun exposure. Great Prices for the best rv vents and fans from Redline. 2-Piece Exterior Wall Vent for Enclosed Trailers - Polypropylene - 3" Diameter Hole - Black part number HMAV2-AVT2 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

All Info
Reviews (453)
Q & A (0)
Related Parts
Photos

Redline RV Vents and Fans - HMAV2-AVT2

Features:

Affordable trailer vent provides continuous ventilation for your enclosed trailer
- To increase ventilation, you can install more than 1 vent
2-Piece design creates a low-profile vent that's attractive both inside and outside your trailer
Half-moon piece with flat, slotted side attaches to trailer's exterior
- Slots are on one side only, allowing you to position the vent for best airflow and to help prevent water from getting in
- Drain holes at the corners let out any water that does get in
Round, slotted interior piece installs inside your trailer
- You can easily trim vent tube to fit thin walls
UV-resistant, polypropylene plastic construction stands up to the elements
Black color
9 Screws and sealant (sold separately) required for installation

Specs:

Fits 3" diameter hole in enclosed trailer
Exterior half-moon dimensions: 8" long x 6" tall x 1-1/4" thick
- Flange width: 1/2"
Interior circular piece dimensions:
- Diameter at flange: 4-1/8"
- Vent tube outside diameter: 2-15/16"
- Tube depth: 1-1/2"
- Flange width: 5/8"

HMAV2-AVT2 Alliance 2-Piece Enclosed Trailer Vent - UV Resistant Polypropylene Plastic - Black

Customer Satisfaction Score:

100% were satisfied with this product

0% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Alternate product found

0% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Alternate product found

4.7

453 reviews

5 Stars		(359)
4 Stars		(62)
3 Stars		(24)
2 Stars		(4)
1 Star		(4)

by: Bob 08/07/2025

The product is as described and easy to install. Wish it came with black screws but I picked up some stainless steel screws and they work fine, just an extra trip to hardware store. Shipping was as promised which is a plus. Great communications from etrailer from start to finish!! Thanks!!

Click to Enlarge

by: James W. 10/02/2013

Excellent product and easy to work with. Great service.

I was concerned however about insects entering through the vents so came up with a filtration system.

Used a PVC coupling and some filter material. Cut the coupling to 1/2 inch rings and remove just enough material to allow an inside press fit. Cut round filter and insert first then hold in place with the ring.

On the outside vent cut a long narrow piece as shown.

When installed as shown, adds very good double filter and allows air to move freely. Just finished a 6000 mile trip clear across the country and back and filter performed perfectly. Eliminating the heat build up AND keeping the bugs out.

JIM : ]

Click to Enlarge

Herb L.

8/2/2014

I really like this idea and thanks for taking the time to document and post this info. What is the blue filter material, where did you find that and how is it secured to the external vent piece?Best regards.

by: Terry 03/03/2021 One Year Later

My 5x8 enclosed trailer was overheating due to no arrangements for ventilation. I added the 2-piece polypropylene trailer vents along with a rooftop solar powered plumbing vent and my problem was solved. The inside of the trailer temperature remains pretty much close to ambient temperature

Click to Enlarge

by: Andy W 03/08/2016

Another review (above) recommended using a plywood jig. I took their advice and was glad I did. They did not include images, so I am. It made the install SUPER easy. 1) Use a scrap piece of 1/2 or 3/4" plywood slightly larger than the exterior vent. Find center of plywood and use 3" hole saw to make opening. Insert the round interior vent (loosely) from one side, and then loosely attach semi-circular exterior piece. Pinch all three pieces together and set on a flat surface. Trace the outline of the semi-circular vent onto the plywood. Make marks at the 6 screw hole openings. 2) Drill through plywood at the 6 screw openings. 3) locate vent position on exterior of trailer (note: make sure the shape of the vent corresponds to the flow of air!!!). 4) place plywood jig at desired loaction (press against exterior of trailer) and drive at least 4 self-tapping screws through plywood and into trailer wall (make sure to use screws long enough to penetrate thickness of plywood). 5) now that plywood is attached to exterior of trailer, use a hole saw to cut through metal and plywood interior wall. The jig will keep your saw in perfect path. 6) Apply silicon to inner rim of 3" round interior vent cover. Press into opening. 7) My interior vent was the perfect depth - It was flush with exterior of trailer wall. If yours is too long, cut to proper depth. Apply silicon at seam where metal opening meets end of interior vent (added protection against rain). 8) Add silicon bead on underside of exterior vent flange. Align with screw holes (from jig attachment) and drive 6 self-tapping screws. Good luck!

Click to Enlarge

by: Sherpa Trailers 06/19/2018 One Year Later

We use these on every trailer we make, very good heavy duty vent, attractive, adds a design element to the trailers. We use both black and white vents, depending on the side color of the trailer. Yes, we are kind of trailer nerds! And we do love e-trailer!

Click to Enlarge

by: Andre 10/22/2026

Easy install

by: Uav 09/14/2018 One Year Later

We use these in all of our trailers, they work just fine, we have had no issues with them. They just provide a little extra ventilation. We use them as a wall vent with lots of silicone behind the screws, and have had no issues with water infiltration or insects. One of our go-to products.

Click to Enlarge

by: Ken 09/03/2026 One Year Later

They've worked out well

by: Sherpa Trailers 01/10/2018

Those parts that we purchase from etrailer always arrive as advertised and in a timely manner. The parts (we are a teardrop trailer manufacturer, and are notoriously hard to please!) are sturdy and well made. Have never had an issue with this company in the four years we have used them as one of our suppliers.

Click to Enlarge

by: Sherpa Trailers 06/15/2020 One Year Later

We use two of these vents on every trailer that we make, and are nothing but happy with the condition, the price and the functionality of it. Such a simple concept that just works so well for some additional ventilation.

Click to Enlarge

by: Sherpa Trailers 07/12/2020

Ticks all of our boxes for passive air flow. Have been using them in our trailers for years now. We use two per teardrop, one on each side of the trailer for cross ventilation.

Click to Enlarge

by: Linda 07/26/2025

Very easy installation. Your online instructions in the videos were a great help for a novice like me.

by: William 11/01/2025 One Year Later

Easy to install and helped the humidity in the trailer

by: RussB 08/01/2014

I needed a rainproof vent for an outdoor electrical equipment box (WiFi). This item fit the bill perfectly. It's mounted on outside of box and an exhaust fan is mounted over the 3" hole on inside. Only used the interior vent as a guide to line up exterior part with 3" hole.

Glad I ran across this item while searching for a vent and eTrailer gave quick shipment.

Joel N.

5/2/2015

I am looking to ventilate a fiberglass camper shell, especially to reduce interior condensation from breath while sleeping in cold andor rainy weather.Rather than a roof vent, I want a vent like this, or the louvered vent, and a small 12 volt fan attached. I imagine it mounted on a vertical wall of the camper shell, not the roof.Can you please describe in greater detail the exhaust fan you mounted over the 3 hole inside? Even if not a 12 volt fan, I would like to see the fan, as I may be able to find a 12 volt version.

Russb

5/14/2015

I used a small Box Fan 3. Google Box Fan 3IN and youll get lots of hits. They come in various voltage ratings. I used 110vac, 12vdc, and 5vdc fans depending on what was available. Be advised these small fans do not move a lot of air for a camper.One thing to consider for camper installation is dust. There is no shutoff on these vents. Ive found travelling on dirt roads sucks in dust through any open holes.I had a camper problem just like yours. My solution was to spray the interior walls with a simulated fabric spray. Dont recall brand or where I got it. However it stopped getting rained on when sleeping inside. Some sort of vent is also desirable. It must be rain proof and close off for dust protection.

Russb One Year Later

8/1/2015

Vent is holding up well after 1 year in AZ sun.

by: Troy B. 08/01/2017

Just finished installing my new vents, very easy to install and look pretty good as well, hopefully they serve they're purpose.
Any ventilation is better than none.

Click to Enlarge

by: Earnest 04/24/2026

Good fit and quality materials.

by: Ron 06/21/2018

The outside finish has witness marks from the molding process. I’m sure it will work good. Low score for finish

Click to Enlarge

by: Michael 09/26/2025

Super easy install and a perfectly clean look from both sides of trailer! Cool product!

by: Rigo V 09/29/2017

purchased a 5x10 enclosed cargo and will be installing 4 vents that are at a great price and will keep my trailer at a lot cooler temp, Thank You etrailer for the speedy shipping, and great parts.

Rigo V. One Year Later

10/1/2018

Hello George i purchased 4 of them, front part of trailer i mounted 1 each side high and rear 1 mounted low each side , we left FW TX and drove to Tigard Oregon and kept the inside of that trailer very cool we don’t have the trailer any more but our next trailer will have the same ones mounted on its walls, thanks for the txt george great product great price...

by: Scotty B. 07/31/2016 One Year Later

Installed these vents in a new enclosed trailer that only offered the overhead vent. I couldn't leave that vent open during bad weather. Using this trailer as transportation as well as storage. Motorcycle requires venting and HMAV2-AVT2 was a snap to install.

Scotty B. One Year Later

7/31/2017

Outstanding, looks new.

by: Mirabify 07/26/2019

Not so Impressed. There doesn't seem to be much better airflow in my trailer. I installed 4 vents. The way the product is designed seems to block air from coming instead of letting it flow.

Mirabify One Year Later

7/27/2020

They dont seem to help much at all to be honest. 4 vents and still hot in the trailer.

by: charlie k 01/15/2014

i had purchased one of these awhile ago and just got around to mounting it.I liked it so much,I bought 3 more. Always get great service at etrailer.and fast delivery.I have purchased lots of trailer parts from etrailer and always been very satisfied

Charlie K. One Year Later

1/19/2015

vents work good

by: Dan G 07/22/2020 One Year Later

No complaints. I'm not sure how efficient the air transfer it through this vent, but it was easy enough to install, and has been water tight. It's installed to vent my battery compartment through the rear of my teardrop trailer.

Dan G. One Year Later

7/26/2021

Still no complaints. Almost had a bear test its durability while camping in tahoe, but chased it away before it investigated too closely.

by: Charles D. 10/10/2016 One Year Later

I installed a pair of the vents at the top rear of an insulated 24ft car hauler. Simple to installed using a highly recommended hole saw. The purpose was to create some natural convective updraft keeping it dry, cooler, and ventilated when using it for long term storage. The provided screws were replaced with Stainless to avoid future rust bleed. There is no gasket provided for the exterior and although it may not be necessary to avoid rain finding its way into the interior, one was improvised using some strip seals (like sticky gum) around all but the bottom so any water could drain. They seemed a bit restrictive for free air flow where the cylindrical shell interfaces the rain guard inside the outer cover. This is necessary to the design for universal left or right installation, but knowing where they be installed allowed the guard to be trimmed up to just below horizontal with out effecting the rain protection. They worked out good, although I would have like to see the available in 4" and 6" sizes.

by: A.Lewis 08/17/2017 One Year Later

My trailer is light weight easy to pull, even loaded don't even fell like its there . The only issue i had and still have the travel lights don't work properly, Ive check the power plug on my truck got a new adapter . I had my dealer ship check its not the truck or plugs. Its some were in the walls of the trailer i really don't want to take apart the walls travel lights to me are not that importation just tail, and break lights im good with my trailer.

453

true

Show More Reviews

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

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

Solar Powered Roof Vent for Cargo Trailer
I have a solution for you, it is a smaller fan unit but we have an item that will function in the way you are looking for. The MaxxFan Mini Plus Manual RV Roof Vent, # MA00-03851 that you linked to needs a fairly stable power supply of 12 VDC and draws slightly less than 2 amps to operate. Wiring directly to solar panel will not support this as the power will fluctuate greatly and eventually damage the electronics in the in the fan. To operate, you need a stable 12 VDC power supply from...
view full answer...
Can 2-Piece Exterior Wall Vent Be Installed On Front Of Trailer
Hey Ken; you can install the 2-Piece Exterior Wall Vent # HMAV2-AVT2 on the front of your trailer. As long as that opening is facing down you won't have any issues with rain water. It is possible some water might splash up into the opening from spray on the road or heavy rain hitting the front but that won't be a problem. The way it is designed on the inside will keep water out of the trailer and allow it to drain once you stop moving. What kind of trailer do you have?
view full answer...
Side Wall Vent Recommendation for an Enclosed Trailer for Maximum Air Flow
Since heat rises I would at the very least put a set of the Trailer Vents # HMAV2-AVT2 near the top of the trailer to get the hottest air of the trailer out. What you could do for maximum air flow in your trailer is have a set facing forward in the front of your trailer near the bottom of the side wall and then have another set facing rearward at the top/back of the trailer. This will maximize getting cool air into the trailer and hot air out.
view full answer...
Will a Side Vent Help to Reduce Heat Inside a Race Car Trailer While Sitting Parked and Cl Up?
Hey Pat! What kind of race car do you have? Exterior vents like the Redline # HMAV2-AVT2 will probably help a bit with the stuffiness, but it's not going to do a ton for lowering the temp - especially when parked. Just opening up your MaxxAir roof vent will be more effective than an exterior vent. Something that will really make a difference is the Ultra-Fab Solar-Powered Plumbing Vent # UF53-945001. It's marketed for a plumbing application, but it would be perfect for your setup because...
view full answer...
Do Go Power AGM RV Batteries Need To Be Vented To The Outside
Hey Todd, The Go Power AGM RV Battery # 34276285 would need to be vented to the outside. Most of the time batteries are installed in a front storage pass through and little vents, like the # HMAV2-AVT2, can be added to a wall or compartment door to allow for air flow into the compartment. I would take come paper or cardboard and cut it down to four pieces measuring 12" long x 8-3/16" tall x 6-5/8" wide to place into your storage space and get an idea of how the batteries will need to...
view full answer...
Mounting a Roof Vent with Fan on a Vertical Wall
Thanks for letting us help Will. While there's nothing that specifically prevents you from installing a powered roof vent like the MaxxFan Mini Plus # MA00-03801 on a vertical wall, these vents are designed primarily for roof installations. Because of that, I'd be concerned about water intrusion over time, especially since the exterior lid and flange are designed with a horizontal installation in mind. The # MA00-03801 also requires a mounting surface at least 1 inch thick. The same requirement...
view full answer...
Can Replacement Half Moon Vent Cover be Used on Front of Flat Nose Enclosed Trailer?
Hey Brian, thanks for reaching out! You can absolutely mount the Replacement Exterior Half-Moon Trailer Vent # HMAV2 at the front of a flat nosed enclosed trailer! It won't promote as good of airflow as it would if it were mounted on the side of the trailer, but it won't affect it structurally at all. If you want the whole vent assembly, then you'll need the Kit # HMAV2-AVT2. Did something fall on your trailer?
view full answer...
Options to Vent a Storage Compartment on an RV
I actually like your first idea better because we have trailer vents that you can install on your door to help keep water spray away from the internal components. Our selection ranges from battery box vents like part # A10-3300BK-05 to ventilator like part # PLR20 to wall vents like part # HMAV2-AVT2. These options will not only help to give you ventilation while protecting your solar setup from the elements but they will also help to give you a clean looking installation. I recommend installing...
view full answer...
Does the 2-Piece Polypropylene Trailer Vent have to Be Installed Facing a Certain Direction
There isn't really a specific way that the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 has to be mounted. You could mount it like in the pictures or in any other orientation. It's just that with the openings pointed down it is much less likely that rain water could get inside the trailer.
view full answer...
How Does Enclosed Trailer Vent Keep Rain Out of Trailer?
The enclosed trailer vents we offer are designed to keep the rain out and the best option would be the 2-Piece Side Vent for Enclosed Trailers # 9139. As you can see from the accompanying photo the exterior piece is angled to keep rainwater out and it also has an interior baffle that will direct rainwater to drain holes in the corner of the vent. The butterfly vent also allows you to close it if you'd like. To install this vent you will need 20 screws and four #10/32 machine screws as well...
view full answer...
Can I Install My MaxxAir Roof Vent On The Wall Instead of Roof
The MaxxAir MaxxFan Mini Roof Vent w/ 12V Fan - Manual Lift part # MA00-04401M can be installed vertically on a wall as long as it is not exposed to much water (like you mention) and the wall has to be at least 1" thick. Installing it this way makes it easier for water to leak in but as long as you use sealant you shouldn't have an issue. You will also not get the type of air flow that the vent being on the roof would provide. I recommend installing a couple of wall vents like part # HMAV2-AVT2...
view full answer...
Trailer Vent Recommendation for Venting an Air Conditioner Unit
The 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 would work well as an air conditioner vent on your trailer. You would just need to cut a 3 inch hole in your trailer to install the vent. For self-tapping screws the part # 31071 would work great and then for sealant part # 0160297.
view full answer...
Best Vent Location To Prevent Items From Blowing Around While Providing Trailer Ventilation
When installing a product such as the 2-Piece Polypropylene Trailer Vent for 3" # HMAV2-AVT2 inside the trailer, the best way to face vents to prevent items blowing around the trailer depends on the vent location. There are slots on one side of the unit, allowing you to position the vent for best airflow. I recommend installing the vents near the top of the trailer to get the hottest air of the trailer out. With the vent being installed closer to the roof of the trailer, point the slots...
view full answer...
Do Half Moon Trailer Vents Need to be Installed Facing Down or Back
You can install the 2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black # HMAV2-AVT2 in whatever manner suits you best; some people install it so the half-moon is facing to the rear though most do it with the half-moon facing down. I have added photos that our customers sent in showing both instances. This is one of those instances where there really isn't a "right" answer because you can install it wherever you think will give you the most ventilation and both corners have...
view full answer...
Attaching the Redline 2-Piece Roof Vent to the Front Side of a Cargo Trailer
Yes, you can mount the Redline 2-Piece Roof Vent, # 9139, on the front side of your cargo trailer. You will want to mount this vent with the vent slots facing down to prevent rain water or other elements from getting into the trailer. If you are looking for vents for the front side of your trailer, then I would recommend the 2-Piece Polypropylene Trailer Vent, # HMAV2-AVT2. This vent is designed specifically for the sides of trailers and is an inexpensive option that is also available...
view full answer...
Best Mounting Orientation of WAVT2-WHMAV2 2-Piece Polypropylene Trailer Vent
If you mount the Redline 2-Piece Polypropylene Trailer Vent # WHMAV2-WAVT2 with the exterior part's flat slotted side facing forward (to increase air flow) there will definitely be a greater probability for rain and splashed water to enter the trailer. Still, as you noted from the customer-submitted photos we show on that item's page some have done this, and surely for the same reason. If you happened to stay in dry/desert areas this will be less of a concern but since you are in the...
view full answer...
Will The JR Products Mushroom Vent # 37202-29115 Work In A Vertical Wall Application
The JR Products Mushroom Vent # 37202-29115 will do a great job keeping out water in a horizontal application. In the vertical position, the mushroom lid would not keep out water as intended, and it would likely admit water into the interior of the vehicle. Also in a vertical application, especially the side of a camper, crosswinds may cause the lid to come loose from the base much too easily. Instead I suggest you take a look at the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2, as...
view full answer...
Wall Vent Recommendation for Enclosed Trailer
The largest side wall vent we have for trailers is 3 inch diameter like the part # HMAV2-AVT2 that you referenced. These do an excellent job venting out hot air in enclosed trailers. I'd install them higher on the walls since hot air rises and probably at the back of the trailer. I'd start with maybe two and see if you like how they perform and add more if you need it. For most people just a pair of these is all that's needed. I attached an install video for this for you to check out as well.
view full answer...
Recommended Vent Setup to Cool Enclosed Trailer Mobile Workshop
Even the smallest RV air conditioning units we offer will require 115-volt AC electrical service of at least 11-amps to operate properly. The Atwood Air Command Rooftop RV Air Conditioner will draw almost 4000-watts at startup and even once running it will still need close to 1300-watts to operate. Delivering this amount of power via high capacity 12V batteries and an inverter such as the 5000-watt Go Power # 34280179 will be a fairly costly and bulky proposition. Instead what I recommend...
view full answer...
Can the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 Mount Facing Forward
If you mounted the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 with the opening of the vent facing forward like a ram air hood on a car there is a better chance of it allowing water through it. If there is any way to mount it like in the picture I attached that we got from a customer you would be better off. That being said, most hood scoops that are small like the part # HMAV2-AVT2 actually don't get a lot of direct airflow at highway speeds because the wind deflects off the top of...
view full answer...
Availability of Side Vents for Toy Hauler Trailer
For trailer side vents we have a couple options but none that are 9 inch by 9 inch. We have the part # 9139 which is 10 by 12 inch and the part # HMAV2-AVT2 which is more of a semi-circle shape that is 6 by 8 inch.
view full answer...
A-Frame Trailer Box to Fit Batteries on Tongue of Trailer
The DeeZee Specialty Series Trailer Tongue Toolbox # DZ91716 may be what you're looking for. It measures 34 inches long in the back, 16 inches long in front, 14-1/4 inches wide and 18 inches tall. It's a 3.71 cubic foot box that locks and comes with two keys. Since you're going to be storing batteries in it you'll want some sort of ventilation. An idea is to install a vent like # HMAV2-AVT2 into the box. You won't have any issues fitting your batteries inside but you'll need to measure...
view full answer...
Will Ventline Vanair Trailer Roof Vent Rain Proof
The Ventline Vanair Trailer Roof Vent with 12V Fan # VP-543SP is not going to be completely rain proof (no roof top vent will be), because they need to be open somewhat, as you can see in the accompanying photo a customer sent in of this vent installed. Though I do recommend closing this vent in the rain, you can add ventilation by installing a vent on the sides of your van. The 2-Piece Polypropylene Trailer Vent for 3" Diameter Hole # HMAV2-AVT2 (Black) or # WHMAV2-WAVT2 (White) will...
view full answer...
Recommended Sidewall Trailer Vent for Cargo Trailer
A 3" diameter vent hole is very common for enclosed trailers. I suggest you first completely remove old vent material and measure the opening. If you do have a 3" diameter hole, my recommendation is the 2-Piece Polypropylene Trailer Vent for 3" vent holes, # HMAV2-AVT2. This 2-piece vent provides a great way to ventilate your enclosed trailer. The round interior vent along with the half-moon-shape exterior piece are both constructed of black, UV-resistant polypropylene plastic that holds...
view full answer...

< Previous

12 3

Next >

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

Info for this part was:

Expert Research:

Mike L

Expert Research:

Robert G

Expert Research:

Michael H

Expert Research:

Jeff D

Expert Research:

Jameson C

Expert Research:

Adam R

Expert Research:

Jeffrey L

Written by:

Raymond P

Installed by:

Cole B

Installed by:

Jacob H

Video Edited:

Chris R

Updated by:

Wilson B

Updated by:

Eric H

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.