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2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black

2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black

Item # HMAV2-AVT2

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HMAV2-AVT2 - Black Redline Vents
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Product Images

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Customer Photos


  • Vents
  • Wall Vent
  • No Fan
  • Redline
  • 6W x 8L Inch
  • Black
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. Call 800-298-8924 to order Redline enclosed trailer parts part number HMAV2-AVT2 or order online at etrailer.com. Free expert support on all Redline products. Guaranteed Lowest Price and Fastest Shipping for 2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black. Enclosed Trailer Parts reviews from real customers.


  • All Info
  • Reviews (119)
  • Q & A (45)
  • Videos (2)
  • Photos
  • Why etrailer?

Redline Enclosed Trailer Parts - HMAV2-AVT2

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







Video of 2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Redline Enclosed Trailer Parts - Vents - HMAV2-AVT2 Review

Today, we're going to be taking a look at part number HMAV2-AVT2. This is the 2-Piece Polypropylene Trailer Vent. The trailer vent is going to provide continuous ventilation for your enclosed trailer. To increase your ventilation, you can install more than 1 vent, but with this part number, you're going to get these 2 pieces. The 2-piece design is going to create a low-profile vent that's very attractive both inside and outside your trailer. The half-moon piece with the flat slotted side is going to attach to the trailer's exterior.

It's going to need to attach 6 areas, so you got 6 mounting holes. Hardware is sold separately. Slots are going to be located on 1 side only allowing you to position the vent for best air flow and to help prevent water from getting in. It is going to feature a small drain hole located on each side here at the corner, so that's going to let out any water that does get in. As long as you use some sealant and you have the slotted holes facing down, you really shouldn't have to worry about moisture or water getting inside the unit. Again, your hardware is sold separately as well as your sealant.

We sell both of those products here on our website, so you can pick up some of those while you're here. This is your exterior piece. The round piece, this is going to be your interior piece. It is slotted, so that's going to allow really good air flow. You can easily trim the vent tube; that's this portion right here, to fit thinner walls if needed and to allow for better air flow. Interior piece, exterior piece, with the wall in between the two pieces.

You just want part of this sitting in this cradle right here to allow better air flow. Again, that can be trimmed to fit thinner walls as well as to provide better air flow or better air circulation. From inside of the trailer, this is all you're going to see, and then from the exterior, you're just going to see this half-moon piece, so it does add a really nice finished look. It's black in color. It's made from a UV resistant polypropylene plastic construction so it's going to stand up well to the elements. Just want to go over some measurements real quick.

This unit's designed to fit a 3-inch diameter hole in your enclosed trailer. The half-moon piece is going to give us a measurement from edge to edge going this direction of 8 inches, edge to edge going this direction top to bottom of 6 inches. It's going to give us a depth; this is how far it's going to stick out from the mounting surface of an 1-1/4 inch. Again, the half-moon piece is going to contain 6 mounting holes. The circular piece is going to give us an overall diameter 4-1/8 of an inch. The vent tube outside edge to outside edge is going to measure 2-15/16 of an inch. The tube depth is going to measure 1-1/2 inch. Mounting flange on the circular piece is going to measure 5/8 of an inch. That's going to have 3 mounting locations. The mounting flange on the half-moon piece, that's going to measure 1/2 inch. Again, your mounting hardware and the sealant are going to be sold separately. That's going to do it for today's review of part number HMAV2-AVT2. This is the 2-Piece Polypropylene Trailer Vent. .


Customer Reviews

2-Piece Polypropylene Trailer Vent for 3" Diameter Hole - Black - HMAV2-AVT2

Average Customer Rating:  4.8 out of 5 stars   (119 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.

- HMAV2-AVT2
by:

Purchase was simple and shipping was fast. I placed the vents of the right and left side with little or not issues and sealed as per instruction. If I was to make a recommendation I would suggest placing a tube of sealant in the vent. But, then you may have issues with color, etc. for customers. 352124



- HMAV2-AVT2
by:

I purchase 2 of these vent's a few weeks ago, Very easy to install. i decided to order 3 more , as they say more vent the better . The only thing i have a problem with is they don't come with screws. 361169



- HMAV2-AVT2
by:

Finally found the time to install 2 of these air vents on my cargo trailer, putting 1 on each side about mid-length and up towards the roof. I used a 3" hole saw with a 1/4" drill bit in the center. I marked my spot on the outside and started drilling. Once I got the 3" started on the outside, I went inside and drilled the #' through the inside wall and kept going through the outside wall. The 2 pieces fit perfect. I then secured each piece with stainless steel screws. I took my time and things worked out great ! These vents should help remove a lot of the hot air that builds up inside of the trailer, here in SW Florida ! 580699



- HMAV2-AVT2
by:

The product seems to be well made and I believe installation will be easy. The only down side is if you are installing it onto any surface that is not at least 1.25" thick, you will need to take up the extra space. This is usually not the case with a trailer wall but is in my case of a composite molded wall of a walk in storage pod. I recommend a finer screen be cut and siliconed onto the molded grate to keep out smaller insects but that is an easy upgrade. 224935



- HMAV2-AVT2
by:

I bought a pair of these to vent my 6 X 10 cargo trailer. They worked great ! 431246


Comments

I have sold the trailer. While I did have it, though, the vents worked very well.

Johnny B - 09/12/2018

43499

- HMAV2-AVT2
by:

While it is just a 'through-the-wall' air vent, it is exactly as advertised and was delivered promptly. It was purchased for a small camper I am building. As others have noted, it doesn't incorporate a bug screen/filter, but anyone able to install the vent should be able to insert a screen if desired. I also plan to install a simple shutter over the inside part of the vent so that it can be closed as needed. 450747



- HMAV2-AVT2
by:

Great price and work great too. 555012



- HMAV2-AVT2
by:

Product was packaged very securely and delivered in a timely manner. I would definitely go to ettrailer for all of my trailer needs. I ordered a basic enclosed trailer. Purchased flush tie downs, stabilizer jacks and vents. Installed all items with ease with no special knowledge or tools. I saved around $450 should these items be included with the trailer. Now I have a sweet enclosed motorcycle trailer that I can use what's the all the amenities I needed. 369190



- HMAV2-AVT2
by:

I have used your web-site before and find it very easy to navigate. The product I ordered is for a small, 5X10 trailer that I use to haul/store my landscape equipment. In the summer months, things get hot and stinky in the trailer so I ordered these to provide ventilation. Your company shipped these vents very quickly and they were no problem installing in my trailer. I have already bookmarked your web-site because it provides the equipment that I need. Thank you. 143013



- HMAV2-AVT2
by:

Nice strong vent. Very durable and easy to install. I would recommend it. 441706


Comments

Perfect!

Sylvain - 10/11/2018

44498

- HMAV2-AVT2
by:

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. 413321



- HMAV2-AVT2
by:

Good product at a reasonable price. Delivery on time with no surprises. A good experience; that's why I placed another order. Thanks for the follow-up. Jim 173017



- HMAV2-AVT2
by:

Great Product.. Great to do business with you company. They are already installed. Very Pleased, I will do business with you again. 127837



- HMAV2-AVT2
by:

Easy to install. I just wish they came with an insert so bugs couldn't get through. I ended up using a window AC filter which worked perfectly for letting air through but making it so bugs can't. 426901



- HMAV2-AVT2
by:

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! 240227



- HMAV2-AVT2
by:

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 : ] 102260


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 - 08/02/2014

6023

- HMAV2-AVT2
by:

Just what the pic shows. Bought to ventilate snowmobile trailer. Not installed yet, but will definitely help . Trailer only came with one vent that was pretty much useless. Good price also. 29791


Comments

Just would like to know how these vents worked out on your snowmobile trailer.I have a snowmobile trailer also with two 3 top side vents, after a day off riding and putting the sleds back in the trailer, you see a lot of ice on the roof the next day.

-- comment by: Jeff - 01/19/2016

16504
Comments

Mine would condense all the time. Other than only one from the factory, that was barely cut out, there was no circulation in the trailer. made a big difference for me. Being that yours is already vented and seems to only happen a day or two after you ride theres probably just too much humidity, while thawing out, for that small of a space. More vents couldnt hurt but if theres no breeze for circulation its still probably going to take a while to dry out. Maybe leave the trailer cracked open a little bit for a day or two?

-- comment by: Ken I - 01/20/2016

16510

- HMAV2-AVT2
by:

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! 524150



- HMAV2-AVT2
by:

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. 564958



- HMAV2-AVT2
by:

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. 437507


Comments

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...

Rigo V - 10/01/2018

44182

- HMAV2-AVT2
by:

Product arrived as described. Awaiting trailer delivery then it will be installed. In the mean time I made filters for both sides to keep the insects and dust out of the trailer. Only down side, no screws were offered with the product so I went to Lowe's and found some white aluminum ones, sanded the white paint off and painted them flat black to match the vent. 126274



- HMAV2-AVT2
by:

I did not go wrong buying this item. Very good for venting tight closed compartments. 630831



- HMAV2-AVT2
by:

Nice vent- wish it was available in the color White or Silver like my custom build. 583549



- HMAV2-AVT2
by:

Purchased item for venting 5X8 enclosed trailer. The item was positioned front and top of the side wall and mounted with venting facing forward. Two additional 3” floor vents were installed in the opposite end of the trailer to allow air flow. Hardware is not included with item; the air flow is restricted by the nature of the water proofing design which restricts the flow to less than 40% of the 3” diameter opening. 548146



- HMAV2-AVT2
by:

It should provide a little more air flow for the m/c trailer. I added some coarse filter material to keep out bugs. 540109



- HMAV2-AVT2
by:

The outside finish has witness marks from the molding process. I’m sure it will work good. Low score for finish 525117



- HMAV2-AVT2
by:

works as expected 521937



- HMAV2-AVT2
by:

Bought 2 of these to vent my trailer. Extremely simple install. Just use a 3" hole saw to locate the inner vent, center and level the outside vent and use the holes on the outside vent to mark the hole pattern and pop some pilot holes for the screws. I used some sealant around the flat that sits flush to the outside of the trailer as well as around the inner vent on the outside of the trailer. 517443



- HMAV2-AVT2
by:

Très biem [Translation: Very Good] 499234



- HMAV2-AVT2
by:

The part was correct and fit perfectly thank you for the great service 496921



- HMAV2-AVT2
by:

Good quality air vents for an enclosed trailer and very good experience buying them from etrailer.com! 495500



- HMAV2-AVT2
by:

I installed this in th sidewall of a cargo trailer, along with a solar vent on the roof, also found on this website. It's a simple design and it should work as advertised. It would get 5 stars if it would have come with the hardware to install it. I used pop rivets and they worked well. 494981



- HMAV2-AVT2
by:

We were very pleased with the durability, look , and installation of the vents. We will use use your website again. 485232



- HMAV2-AVT2
by:

Good product, easy to install... just make sure you are not cutting into hidden support structures. So far, I can see a big positive difference in the amount of moisture in the trailer. The vents do help. 468606



- HMAV2-AVT2
by:

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. 466261



- HMAV2-AVT2
by:

Great product. Delivery was timely, meaning as expected. I wish I would have ordered the screws. 462990



- HMAV2-AVT2
by:

Product was good order arrive quickly and price was great. 441781



- HMAV2-AVT2
by:

It was exactly what I needed to replace one that was damaged on my enclosed trailer. The price was right. The shipping was fast. It was a perfect fit. Nuff said...except, thanks so much for being there when I needed you!!!!!! 440987



- HMAV2-AVT2
by:

Extremely prompt service from ordering to shipping. Great communication for my order confirmation, tracking number, and follow-up. These vents are exactly what we were looking for and actually shipped more quickly than I thought they would. Would definitely recommend etrailer.com to others looking for parts and would order again. 439891



- HMAV2-AVT2
by:

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. 421764



- HMAV2-AVT2
by:

Another great product by another great web store. Great communication and very fast shipping. 417276



- HMAV2-AVT2
by:

Very pleased with Vents.... very easy to drill couple holes and install into our Community Emergency Response Team's Supply Container... 412629



- HMAV2-AVT2
by:

Maybe could be harder plastic. For now works as expected. Thank you for your excellent service. 410822



- HMAV2-AVT2
by:

Easy to install and made a BIG difference in the inside temp. 396861



- HMAV2-AVT2
by:

I ordered two of these vents for my horse trailer. They have helped a lot with the heat and humidity build up in the tack area. The only problem is that they are plastic and paint does not stick very well to them. I tried to paint them the color of my trailer but the paint does peel off after awhile. I think I will just let them be black from now on it is easier. Other wise a great product. 391799



- HMAV2-AVT2
by:

Good quality product. I installed two of these in a small cargo trailer. They are very sturdy and haven't leaked a bit since install. 355957



- HMAV2-AVT2
by:

Seems to work good. I used on my hibrid snowmobile trailer hope this help keep the condensation out. 349533



- HMAV2-AVT2
by:

Great vent, used to vent the floor under norcold cooler on a teardrop trailer. Easy install 345979



- HMAV2-AVT2
by:

Vent was easy to install. Installed 3 on my trailer in under an hour. These will provide air flow when I am traveling and in the summer when temps are hot. 333615



- HMAV2-AVT2
by:

Got them for my 20' car hauler. Quick delivery and exactly what I expected. 330599


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Ask the Experts about this Redline Enclosed Trailer Parts
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  • Tips for Trimming 2-Piece Polypropylene Trailer Vent to Fit a Thin Wall
  • The 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.
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  • Should a Sealant Be Used When Installing Alliance 2-Piece Enclosed Trailer Vent # HMAV2-AVT2
  • When installing a vent like the Alliance 2-Piece Enclosed Trailer Vent, part # HMAV2-AVT2, to a trailer we do recommend to use a sealant like the Loctite Urethane Sealant, part # L0150811, to help seal the trailer from the elements. The Loctite urethane sealant is applied as a thick liquid to parts before assembly or in seams after assembly to create a waterproof bond in a variety of applications. It can seal doors, windows, vents and other areas in enclosed trailers where water could...
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  • Replacement Waterproof Wall Vent for Enclosed Trailer
  • The semicircular portion of our wall vent, # HMAV2-AVT2, mounts to the outside wall. The ventilation slots are on the bottom of the vent, so as long as a sealant is used to install it the vent won't allow water to the interior of the trailer. We recommend using a sealant like Loctite Urethane Sealant, part # L0150811, to help seal the trailer from the elements. The Loctite urethane sealant is applied as a thick liquid to parts before assembly or in seams after assembly to create a waterproof...
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  • 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 # L0150811.
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  • Where to Install Redline 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2
  • The Redline 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 can be installed in any convenient location on your enclosed trailer where you have or can make a 3-inch diameter hole. These vents will work best when used in multiples, with some near the ceiling and some near the floor, to allow cooler air to enter through the lower vents and hotter air to exit through the upper vents. I recommend you use a sealant for installation, such as silicone caulk or Loctite Urethane Sealant # L0150811....
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Info for this part was:

Photos by:
Theodore B
Expert Research:
Robert G
Written by:
Raymond P
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Cole B
Expert Research:
Jeffrey L
Video Edited:
Chris R
Updated by:
Sarah W
Installed by:
Jacob H

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