Best Overall Pick: Adam's Standard Foam Gun

View on Amazon

When you are shopping for an effective way to wash your car, you want to ensure that you are buying one of the best garden hose foam guns. Adam's standard foam gun produces a cost-effective way to create car wash soap suds while using your water hose's water pressure. With a wide fan sprayer, you are guaranteed to get maximum coverage over your vehicle without running out of soap.

Pros:

  • 110% Satisfaction Guarantee from Adam's
  • More foam leads to less scratching while washing
  • pH neutral soap will not remove waxes, sealants, or ceramic coatings

Cons:

  • Some reviewers reported problems using the quick connect feature on the gun

Budget Pick: 8MileLake Foam Sprayer

View on Amazon

When it comes to the best budget garden hose foam sprayer, the 8MileLake Foam Sprayer is at the top of the list. This sprayer has a dial that allows you to choose from eight types of spouts, including mist, cone, rinse, stream, flat, center, jet, and shower. This sprayer fits two different garden hoses with a removable adapter, meaning it will work for everyone.

Pros:

  • Sprayer trigger self locks when spraying. Press once to initiate spraying and again to end spraying.
  • Includes a car wash mitt
  • Budget-friendly

Cons:

  • The container attached to the foam sprayer is smaller than other options on the market

Luxury Pick: Adam's Standard Foam Gun and Mega Foam

View on Amazon

A similar product to our best overall product above, this option comes with an extra gallon of Mega Foam wash. The extra foam wash means that you will wash your vehicle many times before running out.

Pros:

  • Extra foam wash to ensure you don't run out
  • 110% Satisfaction Guarantee from Adam's
  • More foam leads to less scratching while washing
  • pH neutral soap will not remove waxes, sealants, or ceramic coatings

Cons:

  • Some reviewers reported problems using the quick connect feature on the gun

Novosun Car Wash Foam Gun with Wash Kit

View on Amazon

This foam gun comes with a quick connecter allowing you to connect it to your garden hose instantly. You can adjust this gun to shoot a stream of soap either vertically or horizontally.

Pros:

  • 900 mL foam bottle allows you to wash your vehicle without having to refill it
  • The wash kit means you can get into all the nooks and crannies of your car to clean it entirely
  • Water pressure can be adjusted to suit your needs

Cons:

  • Many reviewers complained of there not being enough pressure, although some other reviewers stated they didn't experience it.

Novosun Foam Gun Sprayer with Wash Mitt and Towel

View on Amazon

This Novosun foam gun sprayer is similar to the one above with a few key differences. First, this set includes a drying towel that will not leave streaks on your vehicle. Second, the smaller nozzle is a little easier to handle, without sacrificing the sprayer's capabilities.

Pros:

  • A smaller handle is more comfortable to hold
  • 900 ml foam bottle allows you to wash your entire car without needed to refill it
  • Water pressure can be adjusted with one hand using the metal clip

Cons:

  • The smaller handle leaves some people worried that it might break as it doesn't feel durable

Griot's Garage 51140 Foaming Sprayer

View on Amazon

The Griot's foaming sprayer connects directly to your garden hose to allow you to use your favorite soap to wash your vehicle quickly and effectively. The sprayer's aerator causes your soap to foam up while using less of it, saving your money.

Pros:

  • A quick-disconnect reservoir allows you to switch from soap to water quickly
  • Effective washing without needing a pressure washer

Cons:

  • Challenging to save your soap if you have any leftover

Carrand 92230 Suds N Spray Foaming Wash System

View on Amazon

This garden hose foam gun is made from heavy-duty plastic and has a quick release clean rinse nozzle grip, allowing you to switch from soap to water quickly. The high amounts of foam from this wash system soaks, softens, and loosens stuck-on dirt and debris fast and without scratching.

Pros:

  • Can be used in place of a pressure washer to wash anything
  • The foaming sprayer rotates to help reach all parts of the vehicle

Cons:

  • Reviewers occasionally complain of internal pieces breaking and the trigger no longer working
  • Reviewers complain of the water not passing through the soap even when attached

Swift Jet Car Wash Foam Gun Sprayer

View on Amazon

The Swift Jet car wash foam gun sprayer is easily one of the best foam guns. It is unique in its ability to adjust the concentration of soap mixed with the water, using a six-level foam ratio adjuster to either dial-up or scale back on the amount of foam you are using.

Pros:

  • Connects to any garden hose
  • Backed with a satisfaction guarantee
  • Can be used to spray foam or just water without having to disconnect anything

Cons:

  • Some customers complain that the instructions are written to small, making it hard to understand how to use the product

Liquid X Foam Wash Gun

View on Amazon

The Liquid X Foam Wash Gun is an excellent choice for those looking for a foam washer made of high-quality materials and will quickly and gently clean your car.

Pros:

  • Easy to connect to the garden hose and use
  • Reduces the risk of scratches and swirls on your paint

Cons:

  • No way to easily switch from soap to water without taking apart the whole apparatus
  • Priced a little higher than some of the other options on the list

GES Car Foam Gun with Wash Mitt

View on Amazon

If you want to purchase the best foam gun, the GES car foam gun should be one of the foamguns you consider getting. This gun has two filters built into it to help protect your car from scratches. One of the filters is at the end of the spray foam gun to filter any debris in the water. The second filter is at the end of the pickup tube to filter any debris in the soap.

Pros:

  • Filters help protect your vehicle from scratches
  • Quickly switches between spraying water and foam
  • Foam blaster has a zero to five adjustment dial

Cons:

  • The bottle is smaller than some of the other options available
  • Some reviewers complained the sprayer didn't create the amount of foam they expected

How to Use A Foam Gun

You can buy the best garden hose foam guns, but if you don't know how to use it effectively, you are going to find yourself frustrated with the product. Follow these steps to ensure that you are using your foam gun properly to get the best clean on your car.

Step One – Gather Your Supplies

The first thing that you want to do when you are getting ready to use your foam sprayer to wash your car is to gather the supplies that you need. Most foam guns come with everything you need, except the garden hose. But to be sure, make sure you have the following.

  • Garden hose
  • Spray nozzle
  • Quick connect
  • The foam gun soap barrel
  • Spray foam attachments

Step Two – Select the Right Car Shampoo or Soap

The two different types of foam gun soaps available to you are maintenance soaps and foaming shampoos. Maintenance shampoos are the traditional shampoos that you would put in your bucket. Foaming shampoos are sold, especially for foam guns, as they have an accelerated foaming process. Try and choose a pH balanced soap to ensure that you aren't going to damage wax or coating on your vehicle.

Step Three – Mixing the Soap

Some foam guns are easy when it comes to adding the soap, fill up the barrel, adjust the percentage of water, and start washing. Others are more complex, and you need to mix water into the soap before putting it into the foam sprayer. Read the instructions that come with the soap you purchased to ensure that you are using the correct dilution ratio.

Step Four – Add Water to the Foam Gun Barrel

Depending on the foam gun that you purchased, this might be an irrelevant step. If your foam gun requires you to add water to the mixer's soap before you begin spraying, there is a right and wrong way to do this. Avoid adding the soap into the barrel and then pour water into the barrel after. This will cause the soap to foam up and create too much foam, resulting in there not being enough to spray on your vehicle. Instead, fill a washing bucket up with plain water and set it aside. Add the soap into the barrel and then slowly dip the barrel into the water until it is filled to the desired level. Another option is to put the water into the barrel first and then add the soap.

Step Five – Connect the Spray Nozzle and Garden Hose

Once your soap is ready, read the direction for your unique foam sprayer and connect the nozzle to the barrel and the garden hose to the foam sprayer. You are now ready to wash your car.

Use this guide to choose the best garden hose gun attachment available on the market.