RV Air Compressors – Buyer’s Guide

Best RV Air Compressors

Looking for an RV air compressor? You'll never know when you might need one, but when you do, you'll be so glad you have one.

Life on the road is full of obstacles and flat tires are an annoyance, especially on such large vehicles. Sure, you can call in the professionals, but what if you're in a remote place?

Having your own portable air compressor is important for your own safety and convenience, and they're much more useful than just inflating tires. You can use them to winterize your RV, and much more.

There are many on the market, but how to know which is the best RV air compressor? Fear not, we've taken our expertise and scoured the the internet to bring you what we believe to be the best models on the market.

We dive deep into the products and help explain the different features each one contains, so you'll be able to make a more educated decision when shopping for an air compressor.

After the review, we've included a buyer's guide with all the information you'll need on portable air compressors. Included in the guide are 2 step-by-step guides and videos on how to inflate your tires and how to winterize your RV with an air compressor.

If you prefer, you can scroll straight down to the RV Air Compressor Buyer's Guide by clicking the link...

Review of the Best RV Air Compressors

Now onto the main event, the most important part of your search for a quality RV air compressor is looking for amazing products that are on the market. Thankfully, we’ve provided you with a list of top quality compressors that we believe deserve your attention based on multiple high-quality features.

Buyer’s Guide

Now it's time for the buyer's guide. here we look at RV Air Compressors in more general. You'll learn exactly what one is and when you'd likely need one. We also offer reasoning behind owning a good quality device, and explain how an Air Compressor for RV works, and what to look for while you're shopping for one.

We offer our expertise on the size air compressor you'd need to inflate your RV tires and there are 2 step-by-step guides and videos on how to inflate your tires and how to winterize your RV with an air compressor.

What is an Air Compressor? 

An air compressor is a device that has a tank full of air. You can later use this tank for many purposes. When it comes to RV air compressors, the tank is connected to a power supply that allows the air to pass through an air hose and allows you to inflate your RV’s tires.

How Does an Air Compressor Work? 

An RV air compressor comes with a tank that is full of air. This air passes from the tank to the tires through an air hose. All you have to do is connect the tank to a power supply, and it will automatically fill with air. This stored air can then be used in case of an emergency, especially when you need to inflate your RV tires. 

An air compressor also works to inflate the tires of a vehicle to the required pressure. It also functions as a precautionary measure, so in case your tires do deflate, you can increase their pressure. 

What to Look For in a Portable RV Air Compressor

When looking at the different brands of air compressors, you will be amazed by the different variations, and changes manufacturers can make. Your decision should boil down to only a handful of features and qualities that the perfect air compressor should have. The following are the features you should be looking at.

The PSI and CFM Rating

PSI is the most critical factor when choosing your compressor. If your tires have a PSI rating of 40, but your compressor can only manage 30, there wouldn’t be a point to buying it. You won't be able to fix your tire correctly. The CFM rating is also vital as this refers to the rate that air flow travels into your tire. The higher the CFM rating, the faster your tire will be fixed.

Noise Level

As we all know, compressors, generators, or anything gas operated will make more noise. It’s important to find a compressor that will create the least amount of noise possible. The average sound created by these products is around 40-90 decibels. Anything below 50/60 should be decent enough not to wrack your brain.

Weight

The weight of the compressor is also crucial to think about before purchasing. You will need a compressor that does its job and provides you with the best PSI and CFM ratings. However, this quality usually means the product will be heavy and bulky. Storing your compressor needs to be a smooth experience, just because a company advertises the product as portable doesn’t mean it's not heavy. The recommended weight should be around fifteen pounds or less.

When Would an Air Compressor in an RV Come in Handy? 

An RV air compressor is a valuable tool that offers you various benefits. You can use it for a number of purposes. These include:

Refilling Your Tires 

Air compressors are very convenient, therefore, having one of them with you while you're out on a trip is essential. In case you’re in an area where there is no gas station nearby, and your tires have deflated, you can make use of this tool to overcome the issue. 

Moreover, most units present at gas stations aren’t always in their best shape since they go through heavy usage. This makes it difficult to fill up the tires while using a gas station air compressor. However, you won't have to experience that issue if you use your own.

Used With Other Tools

An RV air compressor can also be used for repairing. You can connect an air compressor to other tools that are air-powered in order to repair things. These include an air nailer, impact guns, etc. Therefore, these air compressors are great for repair work. 

You might think that electrical tools are a better option, but they are not only bulkier, but they also use up a lot of power, which leads to higher bills. Electrical tools don’t last a long period either. Hence, air-powered tools are the way to go, especially when you have an air compressor on hand. 

How to Use an Air Compressor to Inflate RV Tires

If you're using an air compressor to inflate your RV’s tires, then it is always a good idea to follow some tips to achieve good results. Inflating a tire using an air compressor is quite easy and straightforward. 

You need to connect your air compressor to the tire valve then set the pressure according to your requirements. However, to ensure that you get the best results, follow the steps below: 

You will need twin extension hoses, that is if you own a long RV, along with a double foot chuck, and an integrated pressure gauge present in the handle. Once you have all the materials, here’s what you have to do: 

1. You can run the unit on a regular car battery but make sure that you start the engine a few minutes before using the compressor to provide you with an extra boost from the alternator. 
2. Once the power is turned on, the automatic shutoff mechanism ensures that the vehicle doesn’t run continuously. It simply pressurizes the hose and then it shuts off until the next time you need more air. 
3. Next, press the chuck onto the valve stem. This will allow the gauge to display the tire pressure. To add pressure, simply pull the trigger, and the compressor will start working. Release the trigger once again to check the current tire pressure.  
4. Once the compressor repressurizes the air hose, it’ll go back to being silent. 
5. You can even use the compressor for your front tires, which requires higher pressure compared to the rear tires.
6. If you end up accidentally adding too much air, press the release valve to let some out. 
7. You’ll be able to use the twin extension hoses to fill each tire of your RV.

By following these simple steps, you can ensure that your air compressor provides you with the best results. However, if you’re still confused about something, have a look at the following video:

What Size Air Compressor Do I Need to Inflate RV Tires?

This mostly depends on what and where you’re planning on using the air compressor. If you’re thinking of taking it with you on trips, then it’s better to opt for a unit that features a small tank. Larger tanks are more difficult to travel with as they tend to be quite heavy. This way, in case of an emergency, you won't have to lug the tank around.  

However, if you are getting an air compressor with a small tank, make sure that it has a higher psi so that it doesn't take ages to fill your tires. 

How to Winterize an RV With an Air Compressor

Most RV users don’t use their vehicle all year long. If you’re planning on storing your recreational vehicle away during the winter, you must winterize the water lines first. You need to protect the plumbing system from freezing. Therefore, you must know how and what to do so that you’re able to achieve better results. 

Although you could pump the plumbing system with antifreeze, using compressed air to blow the water out is another great option. Even with the latter option, you will require a couple of gallons of antifreeze. 

You could use the built-in compressor on your vehicle or get a portable unit, but remember that any compressor that makes use of a tank can blow oil or other contaminants into the freshwater system. Therefore, it is always better to use an air compressor that features a pressure auto-cutoff mechanism. These units feature a filter that protects the system from all sorts of debris.

Here’s how to use your Portable Air Compressor to winterize an RV: 

1. Use a blowout plug to connect the air compressor to your water system. This helps in preventing excess pressure from rupturing the plumbing. You can attach a standard water pressure regulator inline with the plug. 
2. Next, use an adjustable regulator with a male quick connect on one side and a female on the other. Attach the blowout plug to the regulator and connect these two components to the compressor’s air gun. 
3. Then set the regulator all the way down to about 50 psi to protect the plumbing from getting exposed to more pressure than what is required.
4. The night before, open the freshwater tank low point drain, shut off the propane, and the electricity being provided to the water heating.
5. The next morning, dump, flush, and empty the black and grey tanks. 
6. Once done, leave the grey valve open. 
7. Then disconnect the water supply and turn off the water pump. 
8. Open the pressure relief valve on the water heater and remove the drain plug or the anode rod. 
9. Flush the water heater and remove all the loose scale and sediments.
10. Attach the blowout plug to the hose and connect the compressor to the power supply and turn it on. 
11. Close the pressure relief valve and pull the trigger. This might take some time to blow all the water out. 
12. Pull the trigger one or two additional times until you see only a trickle of water coming out. 
13. Reinstall your drain plug or anode rod. Wrap it around with Teflon plumber's tape on the threads and then tighten it in place. 
14. Turn on the water heart bypass valves and put them into bypass mode. 
15. Open the hot and cold low point drains and then turn every faucet in your RV to warm. 
16. Once the water has stopped running out of the low point drains, close the valves and turn off all the faucets inside the RV. 
17. Open one faucet at a time and turn it on warm. To open both the hot and cold water lines, blow compressed air through the system once or twice until the water clears out. 
18. Repeat this process one by one for all of the faucets. 
19. Pour a cup or two of antifreeze into each drain. 
20. To protect the water pump from freezing, pump it dry, turn on the outdoor shower, and run the pump for about 15 to 20 seconds. 
21. Blow all the remaining water out using compressed air. 
22. To clear the water from the freshwater tank fill line, turn on the valve and blow it out using a backflow preventer inline. 
23. Attach a hose to your black tank flush and blow it out. 
24. Close the freshwater tank low point drain and the grey valve and store the sewer hose away for the winter. Leave all the faucets inside the RV open, and you’re done. 

In case you’re still confused regarding the procedure, make sure to watch the video attached below. It will provide you with a full overview of what was just described, and hopefully, it’ll help clear things up. 

Benefits of Investing in a Great RV Air Compressor

Buying your RV an air compressor can save you a lot of time, money, and effort. You are handed a range of benefits compared to buying more simple or cheap compressors. You don’t want your compressor breaking down, blowing up or failing to pump up your tire when you need it. Investing in a quality compressor will be an investment well-made.

Conclusion

This article will hopefully help you find the best air compressor for your RV. There are different needs for a variety of RV’s, you’ll need to do some of your research such as your RV tires PSI rating. However, the information we provided will work with any air compressor, not only those mentioned on this list.

People Also Ask

This section will be dedicated to multiple questions people have about air compressors. This section helps those who might not understand the jargon the first time around. The following are the most asked questions out of them all.

Where Do I Store an RV Air Compressor?

To store your RV air compressor, you need to make sure that you have adequate storage space. Look for a clean, dry location that is spacious as well. It is always recommended that you store your compressors indoors. Only store your compressor outdoors if you know that the area will have a stable and regulated temperature and will also offer proper insulation. Do not store your compressor in a basement as there is always a chance of flooding. 

Moreover, you need the area to be properly insulated to prevent the units from rusting. Also, make sure that you have a raised platform inside your storage area so that the compressor is placed above the ground to prevent moisture damage caused by groundwater and condensation that might collect on the ground. 

How Do I Silence My Air Compressor?

There are many portable air compressors available on the market, and some of them are designed to ensure reduced noise pollution. However, if you own a cheaper option, then you must know that a compressor that isn’t built to be quiet cannot be silenced using other products. However, you can use some methods to try and reduce the level of noise being created. 

To make your air compressor quieter, cover some of the parts of the unit with rubber to help reduce the vibrations, making it quieter than before. You can also change the location, and instead of placing it on the ground, place it on a rubber mat. Another option is to take the intake and the exhaust system and modify them. If the noise is a big issue, then simply buy a quieter option instead. 

How Much is an Air Compressor For an RV?

You can find RV air compressors costing less than $100 to those that cost up to $400 and even more. Those that fall under $100 are some of the affordable options that you can opt for. They are portable, lightweight, and feature a compact design. They also feature a lower air discharge rate as well. However, they are not suitable for large tires. 

Units that cost over $100 are the best options you’d find. They are equipped with specialized features and equipment, including the automatic shutoff feature, a 100 percent duty cycle, a changeable inflation gun, as well as a carrying case. They have a discharge rate that is higher compared to other cheaper models. They also provide you with faster inflation while working at minimum pressure. They are a lot more durable and are designed to be used for larger tires. 

How to Drain an Air Compressor

For your air compressor to last you a long time, it is important that you maintain it well. Therefore, you must drain all the moisture from the compressor’s tank. 

The first thing you must do is turn off your compressor, unplug it from the outlet and switch it off. Then reduce the tank's pressure to less than ten psi. Pull the ring on the ASME safety valve and release the pressure. Make sure that you wear safety glasses just as a precautionary measure. 

Continue pulling the ring until your tank is empty. Then see where the tank drain valve is, open the valve and drain all the moisture out of the tank. Tilt the tank to make sure all the moisture gets out. Once completely drained, close the valve, and you’re done. 

What Size Air Hose Do I Need For My Compressor?

High-quality RV air compressors offer you long cords and hoses and provide flexibility. These hoses tend to vary in length from three to four feet. However, opting for the latter won't really be of any help as it won’t be that long. Therefore, it is recommended that you opt for a 20 to 26-foot long hose, as you’ll have plenty of room to wiggle around and work comfortably. 

What is an Air Compressor Used For?

An air compressor is used to inflate things like footballs, basketballs or other inflatable products. In terms of RV’s, they can be used to inflate your tires if they ever get punctured or just deflated over time. Using a good compressor means you’ll do minimum work.

What Size Air Compressor Do I Need For My RV?

Depending on what PSI rating your RV tires are, will depend on what size of air compressor you should get. If your tire requires 50 PSI, you need to buy a compressor that can provide 50 PSI or more. It also depends on if you’ll be storing it inside your RV, if you are, you’ll want one with a small tank. However, smaller tanks might not provide you with great PSI or CFM.

What Does PSI Mean in an Air Compressor?

PSI is basically pounds per square inch. It is a metric used to measure air pressure. In an air compressor, this psi rating also indicates the amount of pressure that you can fill the tires up to. Your RV tires also come with a suitable psi rating that is mentioned on the sidewall. You want to use an air compressor that can provide you with a maximum output that can fill your tires requirements. 

What is a Good PSI For an Air Compressor?

On average, air compressors can provide up to 90 PSI. However, the best PSI usually sits at around 150-200 PSI, more heavy duty air compressors would provide this. You won’t often need the larger industrial air compressors. This would take up too much space and weight.

What is a Stage 2 Air Compressor?

A stage two compressor is when the machine compresses the air twice, which results in double the pressure. The same principle applies to a single stage compressor, its compressed once. The mechanism compresses this air between the inlet valve and the tool nozzle.