Best Foam Gun To Wash Motorhome – The Fun Way!

Cleaning your vehicle at home with a pressure washer definitely beats the inconvenience of a drive-through or self-serve car wash. However, you will still have to deal with the challenges of soaping your vehicle. That said, investing in the best foam gun to wash motorhome is a prudent idea if you are looking to make your car washing experience at home more convenient.

MUST READ: Foam Cannon vs. Foam Gun: Best Car Washing Tools for the Money

With the wide array of options available on the market, it can be difficult to find the best foam cannon to soap your vehicle. Apart from the crucial factors you should consider before making a purchase, you should ensure that your cannon of choice works well with the best foam cannon soap for RV. To ease your search, the guide below outlines some of the best foam gun to wash motorhome alongside a buying guide and other essential details to guide your search.

Top 5 Foam Guns to Wash Motorhome

Photo Title Price Buy
McKillans Car Wash...image McKillans Car Wash Foam Cannon for Pressure Washer - Snow Lance Soap Dispenser for Car Washing with Adjustable Thick Foam - Including 1/4 Quick Connector $38.48
Chemical Guys ACC_326...image Chemical Guys ACC_326 – TORQ Foam Blaster 6 Foam Wash Gun – The Ultimate Car Wash Foamer that Connects to Any Garden Hose $49.99
DUSICHIN SFL-001 Foam...image DUSICHIN SFL-001 Foam Cannon Snow Foam Lance Pressure Washer Jet Wash Quick Release Adjustable Nozzle 1/4 Inch Male Fitting Foam Dispenser $12.99
Fasmov Car Wash...image Fasmov Car Wash Pressure Washer Jet Wash 1/4" Quick Release Adjustable Snow Foam Lance Foam Cannon Foam Blaster with Chenille Microfiber Car Wash Mitt

1.    McKillans Snow Foam Cannon

The McKillans Snow Foam Cannon is our best overall foam cannon for many reasons. Apart from its affordable pricing, the one-liter cannon bottle is ergonomically shaped for easy usage. It also comes with a 0.25-inch fitting that adapts to most pressure washer wands.

The unit also comes with an adjustable valve that controls the dilution ratio of soap and water, and the spray pattern as well. This feature provides much-needed versatility. The ergonomically designed bottle makes it easy for users to have a tight grip on the slick surface, even with soapy hands.

The McKillans Snow Foam Cannon also comes with solid brass fittings that enable the foam cannon to adapt to various pressure washer wands. The ability to use soap and water dilution with adjustable spray patterns enables users to target extra-dirty areas with maximum efficiency. It also comes in a transparent bottle, making it easy to gauge the soap levels as you use.


  • Affordable pricing
  • Ergonomic bottling
  • Adapts to most pressure washer wands
  • Multiple spray patterns


  • May not withstand prolonged use

2.    Blisstime Foam Cannon with Wash Mitt

If you are looking to cut down the cost of washing your car, the Blisstime Foam Cannon with Wash Mitt package should be your product of choice. Apart from the powerful foam cannon, the unit comes with a wash mitt that comes in handy when spreading the soapy suds around.

It is worth noting that the bottle comes with reference marks that make it easier for users to measure the soap and water dilution ratio. The marks are demarcated in milliliters and ounces, enabling users to read either of their preference. As with other high-end foam guns, it comes with a 0.25-inch fitting that adapts to the majority of pressure washer wands available for use.

Additionally, the Blisstime Foam Cannon with Wash Mitt features a solid brass composition that assures its durability and longevity. You will also like the adjustable valves that control the amount of soap spread and the directions of the spray patterns.


  • Affordable pricing
  • Multiple spray patterns
  • Adjustable valves
  • Included reference marks


  • Average quality make

3.    Chemical Guys Foam Blaster Wash Gun

Chemical Guys is an established manufacturer of foam guns and other gardening products for more than four decades. The Chemical Guys Foam Blaster Wash Gun is a perfect choice for homeowners who own garden hoses and prefer using it to a pressure washer. The gun is a perfect alternative to pressure washer specific foam cannons. Instead of connecting to a wand through the 0.25-inch fitting, the gun connects directly to the nozzle of the garden hose sprayer.

Probably the defining factor of the Chemical Guys Foam Blaster Wash Gun is that it provides the same foaming action of a cannon without necessarily using a pressure washer. So to say, the spray bottle is quite broad and attaches with a stronger method. It also comes with a wide neck, which allows for increased pouring accuracy.

The unit also features an included spray nozzle, meaning that you won’t have to incur additional costs of buying an adapter that connects the garden hose and the wash gun.


  • No need for pressure washer
  • Broad spray bottle and wide neck for increased accuracy
  • Included spray nozzle


  • Lacks adjustability

4.    DUSICHIN SFL-001 Foam Cannon

The DUSICHIN SFL-001 Foam Cannon is another incredible foam gun that comes in handy in various washing tasks. The unit comes with two amazing features, probably which make it join this top 5 list. Starting is the brass connectors that make it easy to achieve a tight connection with a pressure washer. This feature gives users the peace of mind of working with an effective water pressure.

The second great feature is the 33-ounce bottle capacity that enables users to mix a substantial amount of liquid foam. This provides enough amount to clean normal-sized vehicles several times before requiring refill.


  • Adjustable foam lance
  • Solid brass connectors
  • Large capacity container bottle


  • Opaque bottle

5.    Fasmov Car Wash Cannon Foam Blaster

The Fasmov Car Wash Cannon Foam Blaster does exactly what it is supposed to do. The unit doesn’t come with shiny extras and bolted on features. It is a well-made and sturdy cannon that provides users with plenty of high-quality use for a prolonged period.

Like other great units, it features excellent quality brass connectors that provide assurance of constant water pressure. It also comes with a big bottle that holds plenty of foam mix. With this, you can be sure of washing severally without requiring refill. You will also like the easily adjustable spray nozzle that provides accurate mixing and outstanding foam spray.


  • Solid brass connectors
  • Easily adjusted
  • Large holding bottle


  • Lacks most thrills

Key Features of the Best Foam Gun

As mentioned, the plethora of foam guns available on the market may make it challenging to find the best product. The guide below outlines some essential features to look into before making a buying decision.

  • Quick-Release/Detach Feature

You shouldn’t necessarily worry about finding a foam gun with a quick-release feature because most current products on the market have this as a standard feature. Nevertheless, you should make sure that the platform accepts 0.25-inches fitting, which is the standard used in most foam guns. Even if there are options for adapting your platform to the 0.25-inch fitting, it is better to be aware of this before purchasing the cannon. Quick-release fittings are beneficial as they enable users to remove the foam cannon easily, especially when switching between washing and rinsing the vehicle.

  • Bottle Size and Shape

Most foam cannon manufacturers differentiate themselves with the shape of the foam guns that they sell. While the majority have bottles with capacities of 32 or 33 ounces, you should pay close attention to the shape of the bottle. Most cannons have tanks that resemble scuba tanks. They have short and broad neck, wide shoulders, and drop straight bottom. Some manufacturers include an ergonomic twist that makes it easier for users to handle the cannon.

Apart from the shape, some manufacturers have options of opaque and transparent cannons. As you may know, opaque bottles obstruct the visibility of contents while transparent enables users to watch the foam cannon work. That said, you should consider transparent bottle designs. While this feature doesn’t significantly affect how the foam cannon works, it will make it easy to gauge the level of foam in the bottle. With opaque bottles, you will have to rely on weight to estimate the amount of foam remaining.

  • Adjustable Dilution Ratio and Spray Pattern

If you have used pressure washers before, you definitely understand the importance of having different spray pattern options. Like pressure washers, you might want to adjust the spray patterns to direct water towards a specific area. This enables you to reach hard-to-reach areas with the foam cannon.

Similarly, the ability to adjust the dilution ratio of your foam gun is also very beneficial. With this, you can adjust more form to areas that need more attention, such as the wheels and front grilles, and use light foam for paints and windows.

  • Quality of Construction Materials

Since you will be using water with varying temperatures, some materials can withstand abuse better than others can. Purchasing a higher-quality foam gun is an assurance of using a long-lasting product, even with regular use. Also, you should always dry the foam cannon and its components after every use to prolong the life. Nevertheless, starting out with stronger parts makes a significant difference.

  • Connectors

You should also check on the connectors that come with the foam guns. Purchasing foam cannons with poor connectors will allow water pressure to escape, making the tool less sufficient and also breaks easily.

  • Capacity

The volume of the foam gun is another essential consideration to look into. Going for a foam cannon with small holding capacity will require that you stop after a few minutes to refill the foam mix. Fortunately, the majority of guns outlined in the review above have more than 30-ounce capacity bottles. This is more than enough to clean large cars or trucks in one go.

Benefits of Foam Guns

Some of the benefits of using foam cannons to wash your motorhome include;

  • Uses less water and soap. Drawing water directly from a garden hose or pressure washer, and mixing it with soap in the cannon minimizes the amount of water and soap used.
  • Simplifies cleaning – using a foam gun eliminates the need to dig out the sponge from the washing bucket.
  • Store car wash for next use – storing soapy water in a bucket for some days may not be practical. However, foam guns are air-tight seal, providing assurance that your soapy water will remain useful even after days.
  • Reduces time spent on washing your vehicle – using a foam gun eliminates the hassle of applying soap physically over your entire vehicle.
  • Additional uses – foam guns are not only beneficial in cleaning vehicles. They are also beneficial quick solutions for cleaning a dirty porch, patio furniture, and lawns. They also clean trailers, RVs, and motorcycles expertly.

Tips to Use Foam Guns Effectively

To enjoy your usage experience, check out the following tips;

  • Before using your foam gun on your motor vehicle, practice beforehand by using it on a driveway or porch first. This is the best way to get used to the working functions of the gun and eliminate doubts about damaging your vehicle. You should also play with the dilution ratio and spray pattern settings to find the best fit.
  • Most foam guns apply soap without requiring much scrubbing. However, for cars that are extremely dirty, scrubbing is good to break away the first layer of dirt. In such a case, rinse your car, use the foam cannon then rinse again for better results.
  • You can use a dishwashing liquid instead of using a car wash soap. Dishwashing liquid is comparably affordable and suds up just like car wash soap.
  • If you will be using a pressure washer, always note the GPM and PSI ratings before buying a foam cannon. This will make it easy to find suitable foam cannon.
  • When using foam guns, follow the same steps as you would when washing your vehicle with a bucket and soapy water with a sponge. This means that you shouldn’t leave the soapy residue on the car for long, especially when working in direct sunlight.
  • It is prudent to rinse the vehicle thoroughly after using a foam cannon. Make sure that you remove the soapy residue from cracks and crevices in the car.

The Bottom Line

Car wash foam guns are handy equipment when it comes to washing your motorhome. The gun has a reservoir that allows users to fill with washing shampoo. Once the hose is connected to the water source, pressing the gun trigger perfectly mixes water, soap, and air, forming a thick foam that can be sprayed for washing with precision. Finding the best foam gun to wash motorhome and using it with the best foam cannon soap for RV will make your cleaning process seamless.

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