2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black
(189 reviews)
Price: $19.22
2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black
Item # HMAV2-AVT2
Our Price: $19.22
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Redline RV Vents and Fans - HMAV2-AVT2
- Wall Vent
- No Fan
- 6W x 8L Inch
- Black
- Redline
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.
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 piece
- Overall dimensions: 8" long x 6" wide x 1-1/4" tall
- Flange width: 1/2"
- Interior circular piece
- 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:
99% were satisfied with this product
1% of customers were not satisfied
- Wrong item was ordered
- Did not fit
Customer Reviews
2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black - HMAV2-AVT2
Average Customer Rating: 4.8 out of 5 stars (189 Customer Reviews)
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.by: Tim 12/11/2021
The product is constructed very well and after watching the video to install in my trailer, looks fairly simple to install.
Comments
Still working and providing air flow into the trailer.
Tim - 12/12/2022by: Terry03/03/2021
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
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 : ]
Comments
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.
-- comment by: Herb L - 08/02/2014by: Chad 10/24/2022
Great communication from the pros at Et railer.com
by: Andy W03/08/2016
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!
by: Uav09/14/2018
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.
by: Sherpa Trailers06/19/2018
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!
by: Sherpa Trailers06/15/2020
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.
by: Justin 01/12/2023
Great Product!
by: Richard 07/13/2022
I recommend this product. They have been on my trailer for a year without any problems.
by: Sherpa Trailers01/10/2018
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.
by: Ron 11/03/2022
Quality, fast delivery
by: Dustin 07/30/2022
Cool, calm, and collective was my experience.
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Trailer fixed for 15$
Predicate ya folks
by: Sherpa Trailers07/12/2020
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.
by: Timothy 12/16/2022
My part came in a few days, very fast turn around
by: Mike 07/29/2022
Fast shipping, great communication and excellent customer service. Quality products
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.
by: RussB08/01/2014
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.
Comments
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.
-- comment by: Joel N - 05/02/2015I 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.
-- comment by: RussB - 05/14/2015Vent is holding up well after 1 year in AZ sun.
RussB - 08/01/2015by: Dan G07/22/2020
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.
Comments
Still no complaints. Almost had a bear test its durability while camping in tahoe, but chased it away before it investigated too closely.
Dan G - 07/26/2021by: Ron06/21/2018
The outside finish has witness marks from the molding process. I’m sure it will work good. Low score for finish
by: Scotty B.07/31/2016
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.
Comments
Outstanding, looks new.
Scotty B - 07/31/2017by: Charles D.10/10/2016
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: Robert Miller04/28/2014
Great Product..
Great to do business with you company.
They are already installed.
Very Pleased, I will do business with you again.
by: Mirabify07/26/2019
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.
Comments
They dont seem to help much at all to be honest. 4 vents and still hot in the trailer.
Mirabify - 07/27/2020by: A.Lewis08/17/2017
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.
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See what our Experts say about this Redline RV Vents and Fans
- Trailer Roof Vent Recommendation for a Triton TC-167 Snowmobile Trailer with a Ribbed RoofSince you have a ribbed roof a better option would be a vent mounted to the side of the trailer walls like the part # HMAV2-AVT2. This will give you additional ventilation and won't require you to deal with trying to seal a vent to your ribbed roof. I attached a review video for this vent for you to check out as well.
view full answer... - Best Vent Location To Prevent Items From Blowing Around While Providing Trailer VentilationWhen 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...
- Does Trailer Vent Have Holes to Drain Water?Sure, you can install the Trailer Vent # HMAV2-AVT2 facing the rear if you like to cut down the wind noise. And there are drain holes for water at the corners of the vent. See the red arrow in the accompanying photo? That would be the drain hole for the rain water so it will be able to escape.
view full answer...
- Can 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 Mount Facing DownIf you wanted to mount the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 with the grille facing down you certainly could. I attached a picture that shows the vent mounted like this for you to check out.
view full answer...
- How Mnay Wall Vents are Needed to Make a 14 x 6 Enclosed Trailer Comfortable for SleepingThere really is no formlua when determining how many 3" vents, like part # HMAV2-AVT2, will allow enough air flow to make an enclosed trailer comfortable. It really is just a matter of trial and error.
view full answer... - Can the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 Mount Facing ForwardIf 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...
- Does the 2-Piece Polypropylene Trailer Vent have to Be Installed Facing a Certain DirectionThere 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...
- Side Wall Vent Recommendation for an Enclosed Trailer for Maximum Air FlowSince 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... - Availability of Trailer Vent that Mounts on Wall that Can Open and Close While TravelingThe best option for that would be the # RV-626-062. This can open and close on either side to allow you more flexibility in terms of how much air you would want to move. Check out the review video I attached for more info as well.
view full answer... - Recommended Installation Point for Redline 2-Piece Polypropylene Trailer Vent HMAV2-AVT2The Redline 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 is suitable for front- and rear-of-trailer installation as you describe. The vent is designed to allow any water that does get in to exit through the drainage holes in the corners. The exterior portion's half-moon shape provides protection from moisture entering the trailer while still allowing good air flow to keep your trailer's interior cooler as you drive. Keep in mind that the hot air in the trailer will be at the top near...
view full answer... - What Size Hole Should be Drilled to Install a 2-Piece Polypropylene Trailer VentTo install the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 and have it functional you will need to drill a 3 inch hole with a hole saw like you suggested. If your trailer wall is thicker than 1-1/2 inches you may need to use a piece of 3 inch inside diameter PVC pipe and drill a larger hole to match the outside diameter of the 3 inch pipe.
view full answer... - How Should Polypropylene Trailer Vent # HMAV2-AVT2 Be Installed and Will it Keep Out WaterThe short answer is nothing prevents water from going into vent # HMAV2-AVT2. If you have the opening facing down some water may trickle in at higher speeds but it would not be like a continuous misty spray. I believe that the way you want to install these vents would work well, especially considering that you will also be adding a roof vent. While I have not personally seen anyone install these vents in this manner, there really is no right or wrong way to install them and your way is...
view full answer... - What Size Hole is Needed to Install the 2-Piece Polypropylene Trailer VentInstallation of the 2-Piece Polypropylene Trailer Vent, # HMAV2-AVT2, requires a 3 inch diameter hole when installed in a trailer with standard trailer wall thickness, 1-1/2 inches thick or less. This is the case for most enclosed trailers, but since your trailer wall is thicker than 1-1/2 inches you will need to use an appropriate length piece of 3 inch inside diameter (ID) PVC pipe to accommodate the thicker wall. The outside diameter (OD) of the 3 inch ID pipe will then dictate the...
view full answer... - Vent Modifications to Increase Flow in 5 x 9 Enclosed TrailerThe two-piece vent assembly you referenced, part # HMAV2-AVT2 from Redline, includes an outer portion with perforations on its lower surface to allow hot air out while preventing rain from getting in. Four of these vents (or similar equivalents) seem like a suitable start for basic trailer ventilation so you are on the right track. However, you may want to consider a roof vent. This will require some obvious cutting in your trailer and careful sealing of the vent (to prevent entry of rain)...
view full answer...
- Tips for Trimming 2-Piece Polypropylene Trailer Vent to Fit a Thin WallThe easiest way to trim the round vent piece in Polypropylene Trailer Vent # HMAV2-AVT2 is to first determine how much needs to be trimmed but placing it through the hole in the trailer wall. Mark the proper depth on the vent piece then remove it from the wall. For a straight, clean cut I recommend a rotary tool. You could use a hack saw with fine teeth as well but I would be careful to keep it as straight as possible. You will likely have to sand off some rough edges no matter how it is cut.
view full answer... - Number of Vents to Circulate Air Through 12 by 6 Enclosed Motorcycle TrailerIf the idea is to get the air moving through the trailer as you are traveling one vent # HMAV2-AVT2 in the front facing forwards and another in the back opposite corner facing the rear of the trailer will be the best way to do that. Adding more would help but for a trailer that size that should do the trick.
view full answer... - Orientation of the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 When InstalledIt really is up to you how you want to install the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 that you referenced. The safest way will be with the opening facing down so that water doesn't leak in but we have seen people face the opening rearward without problem as well.
view full answer... - Will Adding a Trailer Vent Reduce CondensationIt would seem to me that having an air vent and a fan vent is going to be sufficient, but you can always add another vent to help improve airflow. With that being said, you can add the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 to provide you with a bit more airflow, but I'd be careful not to place it too low to the ground since it might allow rodents an easier route into the trailer. I don't believe that a vent is going to help reduce condensation and would let more moist air inside...
view full answer... - Will 2-Piece Polypropylene Trailer Vent Cover 4 inch Diameter HoleThe outer portion of the 2-Piece Polypropylene Trailer Vent for 3" Diameter Hole # HMAV2-AVT2 that you referenced would easily fit over a 4 inch diameter hole like you mentioned. The inner section does require a 3 inch hole so it wouldn't be able to attach though.
view full answer... - Wall Vent Recommendation for Enclosed TrailerThe 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... - Installing Redline 2-Piece Polypropylene Trailer Vent on 3/4 Inch Thick Trailer WallThe vent tube on the Redline 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 has a depth of 1-1/2 inches. The exterior half-moon piece does have a depth of about a 1/2 inch to eliminate some of the tube protrusion but on a 3/4 inch thick wall you likely will need to trim just a bit off the tube to allow the exterior piece to install flush with the trailer wall. Most likely you will need to trim just a 1/4 or less off the tube but the best method will simply be to mount the unit through...
view full answer... - Do Half Moon Trailer Vents Need to be Installed Facing Down or BackYou 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...
- Recommended Direction for Installing 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2I recommend having the vent opening of the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 either face the rear of the trailer so that it sucks air out as you are traveling or have it face down as either of these two positions will prevent water from entering into the trailer.
view full answer... - Would Having 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 Installed with Roof Vent Move More AirHaving two vents open on an enclosed trailer will make a noticeable difference in the amount of air that can move through it. With the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 installed and your roof vent open air will much easier move through the trailer. I attached an install video for this vent for you to check out as well.
view full answer...
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