Reviews

Best Foam Cannons: A New Way to Wash Your Car

Our picks for the best foam cannon make washing your car exciting again.

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BY Noelle Talmon / LAST UPDATED ON April 27, 2021

Some people don't mind cleaning their cars, while others find it to be a chore. If you want a squeaky-clean vehicle but don't want to spend a lot of time on the process, a foam cannon can help you get the job done in a fraction of the time. Most foam cannons are connected to a pressure washer and provide similar results to a drive-through car wash. Simply attach the device to your equipment, fill the bottle with soap, adjust the nozzle, and you're ready to go.

A lot of different foam cannons are available online and in stores. If you're not sure which one is the best, check out some of our top picks in the buying guide below.

Best Overall
McKillans Snow Foam Cannon
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Summary
Summary

Affordably priced, adaptable to most pressure washer wands, and adjustable, this foam cannon will easily tackle any cleaning job.

Pros
Pros
  • Its ergonomic shape makes this bottle easy to grip during use
  • Quality brass connectors allow for a sealed connection that won’t fail under high pressure and flow
Cons
Cons
  • Weak translucent bottle may end up cracking at the base of the neck if not stored properly
Best Overall
McKillans Snow Foam Cannon
Best Value
Blisstime Foam Cannon with Wash Mitt
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Summary
Summary

Not only do you get a foam cannon, but you also get a wash mitt you can use to spread the suds around. Blisstime’s foam cannon is a true value pick.

Pros
Pros
  • Translucency isn’t the only feature of this foam cannon
  • You can also use the provided measuring marks to carefully dilute your car wash soap
Cons
Cons
  • Because this foam cannon is cheaper than most, you may need to replace it after a few uses, regardless of whether you dry it properly after use or not
Best Value
Blisstime Foam Cannon with Wash Mitt
Honorable Mention
Chemical Guys Foam Blaster Wash Gun
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Summary
Summary

Intense foaming action without the need for a pressure washer makes this product an easy choice. Simply hook it up to your garden hose for delightful foamy fun.

Pros
Pros
  • Chemical Guys include not only the foam gun, but also a garden hose spray nozzle you can use separately or as part of the foam gun system
Cons
Cons
  • Lacking in adjustability, this foam blaster gun will only spray the ratio you already set when preparing the soap-water mixture
Honorable Mention
Chemical Guys Foam Blaster Wash Gun

Why Trust Us


All of our reviews are based on market research, expert input, or practical experience with most products we include. This way, we offer genuine, accurate guides to help you find the best picks.

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Benefits of Foam Cannons

  • Conserve water and soap. When you wash your car with a hose by hand, you can waste a lot of water. By connecting a foam cannon to the pressure washer, you won't have to dump out a bucket full of soapy water that you no longer need after finishing the job.
  • Clean up easily. Since a foam cannon connects to a pressure washer, you don't need to dig out a bucket and other supplies to wash your vehicle. Simply store the pressure washer alongside the cleaning products when you're done.
  • Store the car shampoo for future applications. If you wash your car with a mitt and bucket, you usually have to dump out the soap and water that you don't end up using. Foam cannons are sealed, so you can keep the cleanser inside and simply use it the next time you need it.
  • Save time. A foam cannon is powerful and easily spreads soap over your entire vehicle. This can take a little longer if you do it by hand. Simply turn on the pressure washer, aim the cannon, and it does the work for you.
  • They're versatile. In addition to cleaning your car, a foam cannon can freshen up your sidewalk, patio furniture, siding, roof, and more. Plus, they're great for cleaning motorcycles, campers, and trailers.


Types of Foam Cannons

Quick Release

Known as a quick release or quick connect, this characteristic can be found in most products on the market today. Opposite the adjustable nozzle, you’ll find a 1/4-inch male fitting that attaches to most pressure washer wands. Having the option to quickly and efficiently remove the foam cannon whenever you want makes it easier to switch between rinsing and washing your vehicle. There’s no need to purchase a special attachment.

Adjustable

Foam cannons with this feature can often be adjusted to not only spray more or less foam but also spray in a fan or stream pattern. Having both of these adjustable features allows you to customize your dilution ratio based on how dirty your vehicle is, as well as to adapt to the parts of the vehicle that you’re rinsing. A fan pattern works best over the entire vehicle, while a more direct stream allows you to target certain stubborn areas like wheel wells.

Interchangeable Nozzle Tips

Many foam cannons will also come with interchangeable nozzles that are differentiated via the angle at which they spray. For example, common angles may include 15, 25, and 40 degrees. While these nozzles attach to the end of the pressure washer wand and not the tip of the foam cannon, they help direct water flow where it’s needed most.

Bottling

Depending on the manufacturer, foam cannon bottles will land somewhere on a spectrum between opaque and transparent. Opaque bottles won’t allow you to see the contents, so if you enjoy watching the foam cannon work, you should lean more towards a transparent bottle design. While this characteristic won’t necessarily affect how the foam cannon works, you will need to rely on weight to recognize when the opaque foam cannon is near empty.

Professional Grade

A lot of manufacturers will specialize in offering a higher-quality foam cannon they label “professional grade.” Really, what this translates to is heavy-duty materials (such as stainless steel) that are more apt to withstand abuse. Quick disconnect fittings are made of stronger metals, the bottles themselves are sturdy and built for durability, and a thicker foam can often be produced. Higher-quality materials often mean a higher price point. 

Top Brands

Chemical Guys

With more than 40 years in the business, the experts at Chemical Guys have taken their native Californian sun and used it to develop a number of useful products. If you’re looking for a package deal, check out the company’s Professional Foam Cannon and Honeydew Snow Foam Cleanser. It’s a great addition to your car care collection.

Adam’s

Based out of Colorado, Adam’s combines the founder’s years of experience with products directed towards the do-it-yourself enthusiast. Choose the Adam’s Car Shampoo if you’re looking for a great wash to pair with your new foam cannon.   

MTM Hydro

The family business MTM Hydro was founded in 1977 in Cherasco, Italy, where its headquarters are still based today. The company produces a variety of parts for pressure washers, including foam cannons like the MTM Hydro Professional Foam Lance.

Foam Cannon Pricing

  • $15 to $25: The majority of foam cannons available will be priced around $20. Some manufacturers market just the foam cannon itself, while others include accessories such as interchangeable nozzles or wash mitts. Bottles tend to be one liter in volume, typically made of plastic with a brass core nozzle. The ¼-inch fittings are often quick disconnect for convenience.
  • $30 to $60: Paying just a bit more for your foam cannon will also get you a few more accessories. A few manufacturers have even come up with a foam cannon design that allows you to hook it up to a garden hose instead. Many companies also include their car wash soap products with the foam cannon at this price point.  
  • $75 to $100: Professional-grade car washing kits made of high-quality materials can be found anywhere from $75 to $100 or more. They typically include a large amount (often one gallon) of car wash soap. While most cannons priced around $20 are adjustable in terms of the dilution ratio and direction of spray, these higher-priced foam cannons can be dialed in more efficiently. 

Key Features

Pressure Washer Requirements

There are two specifications you’ll want to pay attention to when buying a foam cannon. The first is the rate of water flow through the cannon itself. Many can handle upwards of 2 gallons per minute (GPM). This characteristic will be listed alongside the pressure (in pounds per square inch, or PSI). Foam cannons typically require between 1,000 and 3,000 PSI. Pressure washers of light to medium duty have a pressure of anywhere from 1,400 to 2,500 PSI, so make sure you check your power washer specifications and align them with the specifications of the foam cannon you choose.  

Bottle Size and Shape

Many manufacturers differentiate themselves based on the shape of the foam cannon they sell. Most bottles will have a capacity around one liter or 32-33 ounces, but it’s the shape of the bottle itself that you’ll want to pay attention to. Most foam cannons resemble a scuba tank. A short, broad neck sits atop wide shoulders that drop straight down the length of the cannon. However, some manufacturers add an ergonomic twist which makes it easier to hold the cannon as you loosen and tighten it.  

Quick Release or Quick Detach

You won’t necessarily have to worry about searching for a quick release foam cannon because most products on the market include this as a standard feature. However, you will want to make sure the platform you are working with accepts the ¼-inch fitting found on most foam cannons. There are ways of adapting your platform to the ¼-inch fitting, but it’s better to be aware of this concern before you purchase a product. Quick release fittings are desirable because it allows you to store the pressure washer without the foam cannon attached, and you can also easily switch between spraying foam and rinsing the vehicle.

Adjustable Dilution Ratio and Spray Pattern

Just like with a pressure washer, sometimes you’ll want to adjust the water spray pattern to more easily direct water towards a specific area of concern. Being able to do the same with a foam cannon allows you to target hard-to-reach areas that require special attention. The ability to adjust the dilution ratio of your foam cannon is another great feature. That way you can go heavy on the areas that need more attention—think wheel wells and front grilles—while staying lighter across the paint and windows, for example. 

Other Considerations

  • Quality of Materials. When working around water and varying temperatures, some materials withstand abuse better than others. Going with a higher-quality foam cannon will be a benefit if you are someone who will be using the product more than once a month. Drying the foam cannon and its components after use will help extend the life of the product, but starting out with stronger parts will make a huge difference. Consider investing in the mid-range price point foam cannons if durability is a high priority.
  • Preferred Platform. Not everyone owns or has access to a pressure washer. Often a garden hose is more easily accessible. The majority of foam cannons on the market will attach directly to a pressure washer wand, but there are a few companies who’ve come out with similar products that fit typical garden hoses. The main difference between a pressure washer and garden hose is the water pressure, so consider your particular needs when shopping. Pressure washers are able to remove debris more quickly than a garden hose, but they have their drawbacks as well.  

Best Foam Cannons Reviews & Recommendations 2021

Best Overall
McKillans Snow Foam Cannon

We chose McKillans Snow Foam Cannon for a variety of reasons, least of which is the affordable pricing. The 1-liter bottle is ergonomically shaped, and the 1/4-inch fitting will adapt to most pressure washer wands. There are adjustable valves that control the dilution ratio of soap and water as well as the spray pattern. If you’re looking to get a snow foam cannon to try out, McKillans is definitely one you should consider.


As we mentioned, the bottle is ergonomically designed so that you don't have to grip a slick surface with soapy hands. The brass fittings that allow the cannon to adapt to a pressure washer wand are of high quality that will withstand lots of use. The ability to adjust the soap-water dilution allows you to target extra-dirty areas, wherein you can also adjust the spray pattern for maximum efficiency. The bottle is also transparent so you can see the car wash soap level as you spray.


A drawback of this product is that it may not necessarily withstand prolonged use. The translucency of the bottle weakens it, and it may end up tearing at the base of the neck. However, anyone with a pressure washer and a few hours to kill can use this foam cannon to clean whatever their heart desires.  

Best Value
Blisstime Foam Cannon with Wash Mitt

Washing your car doesn’t have to cost you extra each month, especially with the foam cannon package from Blisstime. Included with the foam cannon is a wash mitt that's handy when it comes to spreading all those soapy suds around. This product made our list for more than just the price, however. 


We appreciated that the bottle included reference marks for measuring out the soap to water dilution ratio. Those marks are in milliliters as well as ounces so you can use either method you prefer. The 1/4-inch fitting on this foam cannon adapts to most pressure washer wands and the brass composition allows for durability and longevity. Adjustable valves control the amount of soap distributed as well as the direction of the spray pattern.


The biggest problem we see with this product is that although it’s affordable, the quality may not be similar to higher-priced alternatives. Failure may be more likely to occur. However, together or alone, the adjustable foam cannon and wash mitt are easy for almost anyone to use.

Premium Pick
Chemical Guys Foam Blaster Wash Gun

It could be said that there are more people who own a garden hose than a pressure washer. For this reason, we chose the Chemical Guys Foam Blaster Wash Gun to be our honorable mention as well as an alternative to pressure washer-specific foam cannons. Rather than connecting to a wand via a 1/4-inch fitting, this product connects directly to the nozzle of a garden hose sprayer attachment.


One of the defining features of this product is that you can get the same foaming action of a cannon without having to own the pressure washer. In fact, the spray bottle is broader and attaches via a stronger method. The wide neck allows for increased pouring accuracy and the bottle still holds about a liter of liquid. The included spray nozzle means you won’t have to search for an adapter between your garden hose and the wash gun itself.  


What the Foam Blaster Wash Gun lacks is adjustability. Sure, you can move the nozzle of the foam gun itself to direct the spray, but you won’t be able to adjust the dilution ratio on the fly. At the same time, the adaptability of the product itself makes it an easy solution for anyone with a dirty car, house, motorcycle, RV, lawn furniture, etc.  

Best Range
MTM Hydro Professional Foam Lance

The MTM Hydro foam cannon sprays foam up to 20 feet either vertically or horizontally onto your vehicle, RV, boat, house, sidewalk, etc. It features adjustable fan blades and an easy-to-grip bottle. You can increase or decrease the foam output using the knob on top. The device requires 1,000 PSI or higher to operate and includes 1.1mm and 1.25mm orifices.


This cannon is designed for car enthusiasts who want to apply a thick coating of soap onto their vehicles. Simply attach it to a pressure washer, add car wash soap and water, and apply. The adjustable nozzle changes from a thin stream to a wide fan, which is very convenient, and the knob to adjust how much product is expelled is also very handy.


However, the instructions are not very good, and there have been some complaints that the quick-connect piece may not seal properly and can leak. Also, the bottle is not very wide and can easily tip over. The adjustment knob turns too easily and doesn't lock into place.

Easiest To Operate
Dusichin Foam Cannon

This foam cannon has high-quality brass connectors and a 1/4-inch quick disconnect fitting. The bottle is 33 ounces, and the spray nozzle is adjustable. The top knob controls the foam thickness, and you can use this blaster for cars, motorcycles, windows, driveways, and more. It works with pressure washers with 1.2GPM and over 1,000 PSI.


This cannon is easy to operate, doesn't use a lot of soap, and shoots out an amazing stream of soap. It produces a nice rich foam over your vehicle in just a few seconds. It's easy to dial up or down, and the fittings are solid and high-quality.


Unfortunately, the nozzle is pretty hefty, and the entire bottle with the nozzle attached is top-heavy. It can also be a bit awkward and clumsy to attach to a power washer.

Most Durable
MATCC Foam Cannon III Heavy Duty Car Foam Blaster

This foam cannon has a brass nozzle for durability and leak-free operation. The bottle has a wide neck, making it simple to add the cleaner, and a recessed area so it's easy to hold. A filter on the end of the tube removes particles in the soap and water to prevent scratching the paint, and it has an adjustable spray pattern and a knob to regulate the water and foam. It also has a 1/4-inch quick-connect fitting.


This cannon is solidly constructed, and the nozzle can take a beating while still remaining in the spray position. It produces a good, smooth, and even application when you wash your vehicle. It has a nice wide foam spray pattern, and overall the foam blaster feels very solid, well engineered, and well built.


One problem with this cannon is the valve to control the soap may loosen and can slowly turn on its own when spraying. The instructions are not very good, and it can be hard to maintain the same flow of foam.

Most Cost-Effective
Autown Foam Cannon

The Autown foam blaster features a foam lance made out of brass and an adjustable spray nozzle to change the spray pattern. A top knob allows you to regulate the foam thickness, and the wide-mouth bottle is easy to fill. The blaster requires a pressure washer with 2.0GPM and more than 1,000 PSI.


This foam cannon produces a thick layer of foam in just seconds. Its 1-liter volume is enough to wash two cars, and it has a 1/4-inch quick connector that easily attaches to a power washer without any tools. It's nearly identical to other, more expensive, well-known brand names and works just as well.


One issue is that it doesn't always spray the foam out consistently. Also, the threads on the bottle may start to fall apart after a short period of time, and the spray adjustment may not stay in place, so you have to keep turning it.

Most Efficient
Twinkle Star Foam Cannon Snow Foam Lance

The Twinkle Star foam cannon comes with five nozzle tips and a 1/4-inch quick-disconnect fitting. Its core is made of heavy-duty brass to prevent leaks. The nozzle can be adjusted to produce a wide to narrow spray pattern, and a knob on top controls the foam thickness. Pressure washers must have 2.0GPM and over 1,000 PSI for them to properly operate.


It does not need a lot of soap to do a good job. The wide bottle base allows it to stand upright even with the cannon's heavy metal parts attached, and the wide mouth is easy to fill with soap. The foam blaster does exactly what its description says it will do and does it really well.


However, it's a little heavy, which may fatigue your hands while you're using it. And while it's sturdy, it has a tendency to leak from the top. Also, the fittings are not the best quality, and the bottle doesn't have measurement levels.

Honorable Mention
Tool Daily Foam Cannon

The Tool Daily Foam Cannon is great for cleaning cars, motorcycles, trucks, SUVs, roofs, driveways, windows, and more. The 1-liter cannon has a quarter-inch quick connector and includes five nozzle tips: 0-degree, 15 degrees, 25 degrees, 40 degrees, and 65 degrees. Simply connect the device to a pressure washer gun or wand after filling it with soap and warm water. Then adjust the knob based on the amount of foam you want to dispense. 


The various nozzles can be used for different applications, such as cleaning a vehicle or the siding on your home. Users report that the Tool Daily Foam Cannon dispenses thick foam, and you can adjust it from a wide, gentle fan of foam to a more concentrated, narrow blast. The bottle feels strong and well made and resembles products that are more expensive. Overall, it's simple to set up and easy to operate. 


Unfortunately, it doesn't work with all pressure washers, such as some models made by Craftsman. There have also been some complaints that the knob to control the spray pattern doesn’t stay in position very well, and you may have to adjust it frequently.

Honorable Mention
TriNova Foam Cannon

The TriNova Foam Cannon works with a pressure washer and requires a quarter-inch female quick connect. After filling the bottle with soap, attach it to the pressure washer, adjust the knob, and commence the cleaning process. It's designed to remove bugs, dirt, dust, and other debris from your car. It's also great for sidewalks and home siding. The product has an extra-wide neck that's designed not to crack, and the nozzle adapter connector fits most equipment.


Users report that it produces a thick foam, and it's easy to pour soap from a container into the wide-mouth opening without making a mess. The company also backs up its product with a 100 percent satisfaction warranty and will replace the product or refund the purchase if you're not happy with its performance. Many users say the customer service is top-notch.


One downside is that you may have to adjust the nozzle after each use, and it only sprays foam vertically. The bottle also doesn't have any measurement marks, so you don't know how many ounces are being used. In addition, it’s a little top-heavy when empty.

Tips

  • Before using the foam cannon on your vehicle, spray it on your driveway or sidewalk. This will give you a better feel for how it works, and you're less likely to damage your car. You can also experiment with the spray pattern and dilution ratio to find the combination that works best.
  • If you have an extra-dirty vehicle, you may need to use a little elbow grease in addition to the foam cannon. It's great for breaking up a little bit of grime, but on cars and trucks that are covered with dirt, you may want to rinse the vehicle, spray it with the soap from the foam cannon, and repeat.
  • If you run out of car shampoo, do not use dish soap. While it's designed to remove grease and food from dinnerware, it's not good for your vehicle's finish. Dish soap is abrasive and can make the paint look dull and even oxidized. It will also break down any wax you have on the finish.
  • Check the gallons per minute and pounds per square inch on your pressure washer before buying a foam cannon. Some products are designed to work with specific types of pressure washers. Make sure to choose one that's compatible.
  • Whether you wash your vehicle with a bucket and sponge or a foam cannon, make sure to rinse it in a timely manner. You don't want to leave a soapy residue on the finish in direct sunlight for extended periods of time.
  • However, don't rinse the foam spray off immediately. Let it sit for a few minutes so the formula does its job of breaking down the dirt. While you're waiting, you can clean the wheels and tires using a separate cleanser.
  • After you're done using the foam cannon, thoroughly rinse the vehicle. Make sure the cracks and crevices near the door edges and hood are clear of soap. For an even better result, dry your vehicle using a chamois.

FAQs

Q: Will a foam cannon fit onto my garden hose? 

Some foam cannon products are designed to work with a garden hose, but most are designed to operate with a pressure washer. Make sure to check the product's instructions to see what it requires. 

Q: What other applications besides car washing can I use a foam cannon for?

While foam cannons are commonly used to clean cars and trucks, you can use them on a variety of different items. They’re great for cleaning other vehicles such as motorcycles, ATVs, and RVs. You can also use them to freshen up outdoor furniture, sidewalks, or your home’s siding.

Q: Can I use a different brand of car wash soap than the brand of foam cannon I purchased? 

Absolutely. Foam cannons can tolerate all different brands of car shampoo. However, check the dilution ratio to make sure you get the proper mixture. 

Q: What other brands offer foam cannons that I can choose from?   

The good news is that many companies make good-quality foam cannons. The MATCC adjustable foam cannon is a great option, as is the model from Dusichin. You can also purchase the TriNova foam cannon, which is made by a company that produces a lot of car cleaning products.

Q: Should I be worried about the amount of foam or foam thickness as I spray my car down? 

More foam isn't always best. First, rinse your vehicle to remove as much grime as you can. Then use the foam cannon to penetrate the dirt and clean off any contaminants. You just need enough foam to cover the entire surface. Any extra foam beyond that is extraneous.

Final Thoughts

Our pick for the best foam cannon is the McKillans Snow Foam Cannon due to its affordability and capability. 

For a more budget-friendly option, consider the Blisstime Foam Cannon with Wash Mitt. Simply add a wash mitt with the foaming action of a foam cannon, and you’re on your way to having a cleaner vehicle.