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

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

Part Number: HMAV2-AVT2
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$26.76
RV Vents and Fans
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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.
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  • Reviews (411)
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Redline RV Vents and Fans - HMAV2-AVT2

Highlights

  • Durable polypropylene construction: UV-resistant black material withstands sun exposure.
  • Continuous ventilation solution: Ideal for enclosed trailers, keeps interiors cooler.
  • Simple 2-piece design: Low-profile setup with interior round and exterior half-moon pieces.
  • Easy installation with 3" hole: Compatible with trailer walls up to 1-1/2" thick.
  • Drain holes at corners: Designed to let out water, preventing interior leaks.
  • No fan needed: Efficient air movement without additional power requirements.

Features to know about

Efficient Ventilation for Enclosed Trailers: 2-Piece Low-Profile Design

The 2-Piece Exterior Wall Vent offers a smart and economical solution for maintaining airflow in your enclosed trailer. It's designed with a low-profile, round interior vent and a half-moon-shaped exterior piece that seamlessly blends with your trailer's surface. The polypropylene construction ensures it withstands sun exposure while keeping unwanted elements at bay, helping to prevent heat buildup and maintaining a comfortable environment inside your trailer.

Weather-Resilient Construction: UV-Resistant Polypropylene

Constructed from black, UV-resistant polypropylene, this vent is built to stand up to harsh weather conditions and frequent sun exposure. This means it remains reliable and retains its appearance over time, ensuring your trailer stays ventilated without the need for frequent replacements or maintenance.

Tailored Fit for Optimal Airflow: Adjustable Vent Tube

The vent is designed to fit a 3-inch diameter hole and includes a vent tube that can be trimmed for customization, making it adaptable for varying wall thicknesses. This ensures that you achieve optimal ventilation efficiency, tailored exactly to your trailer's specifications.

Precision Installation: Technical Specifications and Simple Setup

Precision matters when installing trailer vents. With specs like exterior dimensions of 8" long x 6" tall x 1-1/4" thick, and an interior diameter at the flange of 4-1/8", installation is straightforward and efficient. Nine screws and sealant are suggested for secure placement, ensuring the vent stays securely in place and functions effectively.

Superior Airflow Control: Strategic Slot Design

The exterior vent features strategically placed slots on one side, allowing you to position it for maximum airflow and minimal water entry. Drain holes at the corners effectively release any water that does enter, making it a stress-free and efficient choice for trailer owners seeking ventilation solutions.

Versatile and Practical: Modular Installation Options

This vent supports multiple configurations for personalized use. Whether you need to mount it low to boost airflow for your generator or high for general air circulation, it offers flexible installation to suit your specific needs. This adaptability makes it a practical choice for a wide range of enclosed trailers.

Specs

Compatibility

  • Fits: 3" diameter hole in enclosed trailer

Exterior Dimensions

  • Half-moon dimensions: 8" long x 6" tall x 1-1/4" thick
  • Flange width: 1/2"

Interior 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




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Customer Reviews

2-Piece Exterior Wall Vent for Enclosed Trailers - Polypropylene - 3" Diameter Hole - Black - HMAV2-AVT2

Average Customer Rating:  4.7 out of 5 stars   (411 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.

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just what i needed and ordered, thanks



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Just what i expected and wanted



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

  • 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...
  • 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...
  • Installation Hardware for Trailer Vent HMAV2-AVT2
    To install the 2-Piece Polypropylene Trailer Vent # HMAV2-AVT2 you will need 9 screws, either the Zinc Sheet Metal Screw # 31071 or Wood Screw # 30587 as well as Sealant # LT37467.
    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...
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  • 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...
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  • Can 6-1/4 Diameter Ventline Vanair Trailer Roof Vent be Installed on the Wall
    Although I'm sure you could mount the Ventline Vanair Trailer Roof Vent # VP-543SP vertically on your wall, when I reached out to my contact at Ventline he said that it wasn't built to function that way so it may not operate properly. You could instead install a wall vent like part # 9139, # HMAV2-AVT2, or # WHMAV2-WAVT2 to help promote airflow if you don't want to/don't have room for an electric vent on your roof.
    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...
  • 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...
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  • 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...
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  • 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...
  • 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...
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  • 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...
  • Vent Recommendations for Side and Top of a House Boat With Refrigerator
    If you sealed the part # HMAV2-AVT2 properly you could use it as a vent for the side of your houseboat. For sealant you could use the part # 0160297. For the top I would go with a # VP-543SP to allow the heat to easily escape from the top. This vent has a fan built into it so it will draw the hot air out. I attached a review video for you to check out as well.
    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...
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  • 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...
  • 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...
  • 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...
  • Is Passive Inlet Vent Needed With Ventline Powered Vent in Camper Shell?
    When installing the Ventline Vanair Trailer Roof Vent # VP-543SP a passive inlet vent such as # HMAV2-AVT2 certainly would not hurt though it is likely not necessary, though it would be difficult to say for sure without knowing the rest of your ventilation, the size of the camper and how much condensation you are likely to produce. In regards to your question about the spacer, you are correct that a spacer will be needed for the thin camper shell. I've added links to video reviews of...
    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...
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  • 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...
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  • Will 2-Piece Polypropylene Trailer Vent Cover 4 inch Diameter Hole
    The 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...
  • 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...
  • 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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