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Replacement Round Interior Trailer Vent for 3" Diameter Hole - Black

Replacement Round Interior Trailer Vent for 3" Diameter Hole - Black

Item # AVT2
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This round vent forms the interior part of the Alliance 2-piece enclosed trailer vent. Constructed of UV-resistant polypropylene plastic that holds up to sun exposure. Black color. 1-800-940-8924 to order Redline accessories and parts part number AVT2 or order online at etrailer.com. Free expert support on all Redline products. Guaranteed Lowest Price and Fastest Shipping for Replacement Round Interior Trailer Vent for 3" Diameter Hole - Black. Accessories and Parts reviews from real customers.
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  • Reviews (23)
  • Q & A (0)
  • Videos (2)
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  • Why etrailer?

Redline Accessories and Parts - AVT2

  • RV Vents and Fans
  • Wall Vent
  • Redline

This round vent forms the interior part of the Alliance 2-piece enclosed trailer vent. Constructed of UV-resistant polypropylene plastic that holds up to sun exposure. Black color.


Features:

  • Interior vent is the inside part of the Alliance 2-Piece Polypropylene Trailer Vent for 3" Diameter Hole
    • Fits half-moon exterior trailer vent (HMAV2; sold separately)
  • 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


Specs:

  • Fits 3" diameter hole in enclosed trailer
  • Diameter at flange: 4-1/8"
  • Vent tube outside diameter: 2-15/16"
  • Tube depth: 1-1/2"
  • Flange width: 5/8"
  • 3 Screws (sold separately) required for installation
    • Hole diameter: 3/16" (fits #8 screw)
  • Sealant sold separately


AVT2 Alliance Inside Half of 2-Piece Enclosed Trailer Vent - UV Resistant Polypropylene Plastic - Black





Video of Replacement Round Interior 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 2-Piece Polypropylene Trailer Vent Review and Installation

Jake: Hey guys, it's Jake here with etrailer. Today we're going to be taking a look at the Redline half-moon trailer vent. This is going to allow fresh air to get in and hot air to get out without having to worry about getting any water inside your trailer.In this kit, you are going to get the outside vent and the inside receiver so that you can have a nice clean look on the inside of your trailer. This is really going to be important for if you have a wall inside your trailer like we do, but if you don't have a wall, you can just use this part and you'll be able to mount it to the outside of your trailer and get fresh air without having to worry about any water.So you can buy these as a kit or you can buy them separately. Now here you'll see we have our vent in black. It's also available in white if you'd like to match it to your white trailer.Here's that piece on the inside wall that we we're talking about.

This is going to give it a nice clean look so you just don't have an open hole in your wall. It's going to have a nice flush mount design so you don't have to worry about anything running into it when it's on the wall. It's also going to help preserve this part from being damaged.If you want more of a cross-flow to go into your trailer, you could pick up a couple of these vents to be able to put one on the opposite corner of your trailer so that you have wind coming in the front and going out the back. When using two vents, it's going to provide a way for cool air to get in and warm air to get out. Now that we've gone over some of those features, let's go ahead and show you how we got it installed.We'll start by drilling a 3" hole.

We're going to start on the inside so that we know we're not going to run into anything inside the walls. You can see we have our ribs here and here, so we're going to split the difference and do it in the middle of them. Then we're going to continue with the hole saw through the sheet metal on the outside so we know where our hole needs to be drilled. We'll go ahead and insert our pilot bit into the hole that we punctured through the sheet metal and start drilling out our hole.I'm going to go ahead and insert our vent on the inside and fasten it down. Here we just found some stainless steel screws so we don't have to worry about any rust.

Now we can move to the outside, and we can go ahead and get our outside vent in place, slide it over. We'll use a self-tapping screw, but you want to be careful with this sheet metal on the outside of your trailer. It's not very thick. You don't want to strip it out. We'll stop right there and hand-tighten from here.

Now we'll go ahead and get the other five screws in place.Now, we went ahead and put some of this Loctite black silicon gasket on the inside. We took our cover off and put it on the inside to seal it up nice and neat to make it a nice watertight seal. We do have this at etrailer. You can pick some up if you'd like.Once you have all your screws in place, you're ready to hit the road.With all that being said, that's going to do it for our look and installation of the Redline half-moon trailer vent.


Customer Reviews

Replacement Round Interior Trailer Vent for 3" Diameter Hole - Black - AVT2

Average Customer Rating:  5.0 out of 5 stars   (23 Customer Reviews)

This round vent forms the interior part of the Alliance 2-piece enclosed trailer vent. Constructed of UV-resistant polypropylene plastic that holds up to sun exposure. Black color.

by:

Installed this simple yet perfect 3” vent cover for a bathroom exhaust fan.



by:

Perfect!
Just what I’ve been looking
for.
High quality product just as described.


Comments
These vent covers have held up nicely. Really good quality product.
Ingrid - 07/23/2021

by:

EASY TO INSTALL NICE PRODUCT.


Comments
GREAT!!
Brad a - 08/23/2021

by:

Just what I needed



by:

Perfect for venting the small cargo trailer I have. Only purchased this part, as I had found the others locally but was missing one. So if you're buying, don't forget to purchase the outside one :)
Great service and delivery time. Thank you!


Comments
Great to allow heat escape and air flow. Customer service is amazing!
Faye - 05/31/2019


by:

Great product and easy to install


Comments
Product is still holding strong.
Edward W - 05/29/2021

by:

I purchased these register covers to install as the interior grills for dorade vents on a 44 foot sailboat. I glued fine mesh screens to the interior tubes to prevent the ingress of noseeums and other insects. Very good value for my purposes and look very finished. Two thumbs up.



by:

Just what I wanted and works very well to help keep condensation out of my trailer.



by:

was easy to install and works great


Comments
good so far
Arnie A - 09/28/2018


by:

Outstanding customer service.



by:

Great service!!!!!!!!!!!!!!!!!!!!!
Product
was EXACTLY what I needed. Placed an order right after for a new trailer hitch!



by:

we have no complaints about this product.



by:

Item was exactly as described, works perfectly for our application (vents in an animal cage) and shipping was fast. Thanks!



by:

Good product great price and no ripoff on shipping



by:

Quality!



by:

was what i expected



by:

On time and working fine



by:

Using them as vents on the house, great product and fast delivery.



by:

Super fast shipping, product as describ ed



by:

exactly as described on-line



by:



by:

Great product and fast shipping !



by:

Great!


23
23

Ask the Experts about this Redline Accessories and Parts



  • Orientation of the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 When Installed
    It 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...
  • Can 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 Mount Facing Down
    If 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...
    Image 1 for
  • 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...
    Image 1 for Image 2 for
  • 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...
    Image 1 for
  • Installing Redline 2-Piece Polypropylene Trailer Vent on 3/4 Inch Thick Trailer Wall
    The 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 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...
    Image 1 for Image 2 for
  • 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...
    Image 1 for
  • 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...
  • Trailer Roof Vent Recommendation for a Triton TC-167 Snowmobile Trailer with a Ribbed Roof
    Since 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...
  • Number of Vents to Circulate Air Through 12 by 6 Enclosed Motorcycle Trailer
    If 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...
  • Availability of Trailer Vent that Mounts on Wall that Can Open and Close While Traveling
    The 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-AVT2
    The 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...
  • How Mnay Wall Vents are Needed to Make a 14 x 6 Enclosed Trailer Comfortable for Sleeping
    There 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...
  • What Size Hole Should be Drilled to Install a 2-Piece Polypropylene Trailer Vent
    To 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 Water
    The 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 Vent
    Installation 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 Trailer
    The 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...
    Image 1 for
  • 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.
    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...
    Image 1 for
  • 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 Direction for Installing 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2
    I 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 Air
    Having 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...
  • Orientation of 2-Piece Polypropylene Trailer Vent to Prevent Air Flow Disturbances
    If you are worried about moving too much air in your trailer with the install of the trailer vent part # HMAV2-AVT2 your best option would be to only run these vents as exhaust vents so facing the rear of the trailer as that will gently pull air out of the trailer as you are driving. I attached an install video for this vent for you to check out as well.
    view full answer...
  • Will Adding a Trailer Vent Reduce Condensation
    It 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...


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Info for this part was:

Employee Cole B
Installed by:
Cole B
Employee Jacob H
Installed by:
Jacob H
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B

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