Best Rv Sewer Vent Cap Available Right Now (2022)

Sometimes it might be quite difficult to find the best rv sewer vent cap. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this rv sewer vent cap buying guide.

Our Favorites:

10 Best Rv Sewer Vent Cap Reviews:

Bestseller No. 1
Camco Replace-All Plumbing Vent Cap with Spring Attachment - Replaces Lost or Damaged RV Plumbing Vent Caps | Fits Up to 2" Plumbing Vent Pipe - White (40034)
  • Replaces lost or damaged RV Plumbing Vent Caps
  • Cap fits up to a 2" pumbing vent pipe
  • Made with UV inhibitors to extend the life of your vent cap
  • Features spring tension attachment, which eliminates the need to replace the entire vent
  • Vent cap only (base not included)
Bestseller No. 2
Danco, Inc. 88181 Mobile Home Plumbing Vent Cap , White
  • Plastic construction for durability
  • Fits pipes with up to a 1-1/2 in. diameter
  • For mobile homes
  • Weather-resistant seal and resists rust and corrosion
  • MFG Model # : 88181
Bestseller No. 3
Use the power of the wind to draw holding tank odors out of the RV
  • Rotates 360 degrees to follow the wind
  • Attaches easily to most RV plumbing vent
  • Black in color
  • No drilling into your rooftop
SaleBestseller No. 4
Lippert Components 389381 360 Siphon Roof Vent Cap - White (Gen 2)
  • Eliminates Odor - Exhausts Odors Out The Roof Vent Before They Have A Chance To Invade Your Rv
  • Compatibility - Engineered For A Universal Fit, The 360 Siphon Is Compatible With All Rv Vent Caps
  • Durability - Built With Polycarbonate, The Sophisticated, Patented Design Of This Vent Has No Moving Parts
  • Keeps Pests Out - A Built-In Screen Helps Ensure Bugs Stay Out Of Your Rv, For A Worry-Free Camping Experience
Bestseller No. 5
RV Plumbing Vent Cap with Metal Mesh - Roof Sewer Vent Covers fit 1 to 2 3/8 In O.D. Pipe Prevent Nesting, Camper Trailer Motorhome Bathroom Exhaust Replacement Accessories Kits - 2 Pack
  • 【Helps Expel Odors】This RV roof sewer vent cover can be a good shelter from wind and rain, which helps to let the unpleasant sewer gas out smoothly and prevent the odor from entering the interior of the RV because of the wind and rain backing up into the pipes. It can help keep the air inside your RV and camper fresh.
  • 【Preventing Animal Nesting】Our RV vent cover has been upgraded to provide you with a metal mesh, which can be freely installed according to your needs. The metal mesh can effectively prevent birds or other small animals from nesting in the duct, or the duct from being blocked by foreign objects! Tips: The thickness of the metal mesh will result in the top of the lid not being completely tight. But don't worry, the lid easily snaps on the vent without falling off.
  • 【Product Information】This RV roof vent cover fits ducts with an outside diameter of 1" to 2-3/8". The whole of the product is made of high quality plastic with removable metal mesh inside. It is durable, UV resistant, heat resistant, corrosion resistant and impact resistant, and can serve you for a long time.
  • 【Super Cost Effective】Our RV Roof Sewer Vent Cap Replacement Kit includes 2 vent caps with metal mesh, just right for the 2 vents on the roof of your RV or camper. By replacing your worn out old vent caps with our cost effective cap kit, you can save a bundle!
  • 【Easy to Install】Please prepare 6 screws and sealant before installation. (Not included in the product) 1. Clean the perimeter of the top duct of the car after removing the old vent cover. 2. Apply a generous amount of sealant around the ducts. 3. Place the new vent cover over the sealant and gently wiggle it to ensure a perfect fit with the sealant. 4. Screw the screws into the holes in the base. 5. Apply some sealant evenly to the base to fill the gap to prevent leaks.
Bestseller No. 6
RVMATE Plumbing Vent, Camper Vent Cap Replacement, RV Sewer Vent Cap for 1 to 2 3/8" Pipe, White
  • Made from strong solid plastic, UV resistant
  • Replace damaged plumbing vents, easy to install, cap detachable
  • For use with 1" to 2-3/8" diameter pipe
  • 3" tall, 5.3" diameter base
  • 6 screw holes in the base for mounting
Bestseller No. 7
Rotating Sewer Vent, Rotating Sewer Plumbing Vent for RV, Rotating Holding Tank & Black Water Tank Vent - White
  • Sewer vent is designed to improve air quality specifically in RV. When the wind blows through the fin, negative pressure can be generated to extract the odors from the holding tank, keeping the air fresh in the car. Even the breeze can create a vortex easily to take away odors.
  • Holding tank vent can be rotated automatically and adjust the position 360 degrees depending on the wind blowing direction. Rotating sewer vent can pull odors out constantly without additional operations once installed. When installing, ensure that the sewer vent can rotate freely without obstacles for normal operation.
  • RV rotating sewer vent is mainly applicable to 1-1 / 2 "RV holding tank vent pipe and can easily be connected with different sizes of RV vent pipes with adapters or couplers. Both black and grey water tanks can be used with this sewer vent.
  • The production of sewer vent is based on the operating environment of the RV that selects high-quality composite materials which are strong and durable enough. Rotating sewer vent Focus on the ability of UV radiation, oil and acid corrosion resistance, aiming to improve the air quality in the RV for a long term.
  • We provide you with 100% refund and friendly customer service. If you have any dissatisfaction with the purchase, please contact us through Amazon, and we will arrange replacement or refund for you. Thanks for your trust.
Bestseller No. 8
RV Plumbing Vent Caps - Camper Vent Cap Replacement for RV Trailer Camper Motorhome, RV Roof Sewer Vent Cover Caps Kit for 1 to 2 3/8 Inch Pipe - White-(2 Pack)
  • These RV Roof Covers are made of high quality plastic material, UV resistant, durable to use.
  • This roof vent expels sewer gas to prevent unpleasant odors from entering your RV's cabin through your plumbing. Vent mounts on top of your RV's ventilation pipe.
  • Easy to install. 6 screw holes in the base for mounting, screw right on, make sure you have silicone caulking to seal all around it. Cap easily snaps onto the vent.
  • Item dimension: ID 3.8", 5.3" diameter base, 3" tall, perfect fit for 1" to 2-3/8" diameter pipe
  • Package includes 2 packs RV Plumbing Vent Caps. These work great to replace your campers worn out original vents.
Bestseller No. 9
wadoy RV Plumbing Vent Cap, Camper Vent Cap for 1 to 2 3/8" Pipe, RV Sewer Vent Cap Replacement (2 Pack)
  • 【MATERIAL】:Manufactured of High Quality Plastic material with UV stabilizer,thick and will last a long time.
  • 【COST-EFFECTIVE】:Inexpensive way to fix or repair your old vent cover, costs less than the RV store!!
  • 【DIMENSION】:Item dimension: ID 3.8", height 3",Fit for:1" to 2 3/8" O.D. pipe
  • 【EASY TO INSTALL】: Make sure you have some sealant on had for this job to keep the water out after replacement. Its a quick and easy swap out, just pull the screws out, clean the old butal sealant off, put new sealant on the ring and screw it back down.
  • 【FUNCTION】: This roof vent expels sewer gas to prevent unpleasant odors from entering your RV's cabin through your plumbing. Vent mounts on top of your RV's ventilation pipe. Cap easily snaps onto the vent.
SaleBestseller No. 10
3PCS RV Plumbing Vent Cap Kit, Plumbing Vent, RV Roof Sewer Vent Cover Cap House, Plastic Roof Cover White
  • Quality Materials: RV plumbing vent cap is made of durable polyethylene plastic, which is durable, not weathering, strong oxidation resistance and long service life.
  • Size: Open cover design structure, ventilation cover inside diameter 3.8 inches, outside diameter 5.3 inches, total height 3 inches. Fit for: 1" to 2 3/8" O.D. pipe.
  • Easy to install: The roof vents are designed to be detachable and can be easily installed with 6 screw holes in the base.
  • Function: The sewer vent can effectively expel sewer gas to prevent terrible odors from infiltrate your RV’s cabin through your plumbing.
  • General Purpose: Before purchasing products, please measure and determine the required size, our water pipe cover is suitable for all types of rv camper.

Last update on 2022-10-01 / Affiliate links / Images from Amazon Product Advertising API

How to find the best rv sewer vent cap?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best rv sewer vent cap for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good rv sewer vent cap recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the rv sewer vent cap need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for rv sewer vent cap to find what you’re looking for:


In some cases, the brand of rv sewer vent cap is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.


The features in any given rv sewer vent cap are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.


Customer reviews about rv sewer vent cap are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.


Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare rv sewer vent cap quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.


Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.


The quest to find the best rv sewer vent cap can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.