Foam cannons are an increasingly popular car washing accessory that use pressure washers to apply thick, clinging foam to vehicles. This foam helps lift dirt, grime, and other contaminants from the vehicle surface to allow for a more effective clean. In this article, we will explore what foam cannons are, how they work, their benefits for car washing, tips for selecting and using them properly, and other frequently asked questions about these useful devices. Optimized for search intent around understanding foam cannon functionality and best practices, this guide aims to be helpful, comprehensive and easy to digest for any car owner looking to improve their cleaning process. We will cover topics such as foam cannon construction, recommended settings, proper usage technique, and compare foam cannons to similar products like foam guns. With informative sections and clear examples, our goal is to provide readers with a deeper understanding of foam cannon technology and applications.
Our Top Picks For 2025
Tool Daily Foam Cannon
The Tool Daily Foam Cannon is an adjustable foam blaster that attaches to pressure washers to apply thick, clinging foam for car washing and cleaning. It comes with multiple nozzle tips and quick connector for easy attachment.
The Tool Daily Foam Cannon is a high-quality foam cannon designed to generate thick, rich foam when attached to a pressure washer. This foam cannon by Tool Daily features:
- 1-liter capacity bottle with adjustable foam control knob to customize foam thickness
- Durable plastic construction with brass fittings
- 1/4 inch quick connector for attaching to wands or guns
- Includes 5 color-coded nozzle tips (0°, 15°, 25°, 40°, 65°)
- Maximum pressure rating of 3000 PSI
With its easy connection system and adjustable settings, the Tool Daily Foam Cannon makes it simple to cover your vehicles, equipment, and surfaces with high-cling cleaning foam. The foam loosens and lifts dirt for a touchless “pre-wash” so you use less water and elbow grease during the main wash.
AstroAI Foam Cannon Car Wash Gun
The AstroAI Foam Cannon is a heavy duty foam blaster designed to generate thick, rich foam when connected to a pressure washer. It features an extra wide neck for easy pouring, adjustable nozzle for customizable foam thickness, and durable metal construction.
The AstroAI Foam Cannon Car Wash Gun is an essential car detailing accessory that takes your vehicle washing to the next level. This high-powered foam blaster connects directly to your pressure washer wand to coat your car with thick, clinging foam that lifts dirt and grime.
Key features and benefits:
- Wide neck bottle design prevents cracking and makes it easy to pour soap concentrate into the tank.
- Adjustable nozzle allows you to control the foam thickness and spray pattern. Rotate 360 degrees for complete coverage.
- Industrial grade brass core and metal neck provide maximum durability for long term use.
- Quick-connect plug securely attaches the foam cannon to your pressure washer wand in seconds.
- Generates rich, thick foam that clings to surfaces to dissolve dirt and grime before rinsing.
The AstroAI Foam Cannon transforms the car washing process into an easy and efficient foam bath that leaves your vehicle sparkling clean. Ditch the sponge and bucket for good with this high quality foam blaster.
DUSICHIN SFL-001 Foam Cannon
The DUSICHIN SFL-001 foam cannon is an adjustable foam blaster that attaches to pressure washers to generate thick, clinging foam for hands-free car washing. It has a 1-liter bottle, 1/4″ quick connectors, and an adjustable nozzle to control the spray pattern.
The DUSICHIN SFL-001 Foam Cannon is a high quality foam blaster designed to generate thick, rich foam when attached to a pressure washer. This foam clings to surfaces to allow the soap to penetrate and lift dirt for a touchless, deep clean.
Key Features:
- Adjustable nozzle with variable spray patterns from tight stream to wide fan
- Knob on top adjusts water/soap mixture for desired foam thickness
- 1-liter bottle capacity
- Durable brass and stainless steel connectors
- Requires minimum 1.2 GPM pressure washer
- Handles up to 3000 PSI max pressure
- Weighs 1 lb for easy handling
- Generates rich, thick foam that clings to surfaces for touchless cleaning
The DUSICHIN SFL-001 foam cannon is an affordable yet heavy duty foam blaster that attaches to standard pressure washers to make car washing fun and easy. The adjustable nozzle and foam control knob allow you to customize the foam to your needs.
PWACCS Foam Cannon
Adjustable foam cannon creates thick, rich foam to clean cars, motorbikes, roofs, driveways, floors, windows, trucks, and more. Durable stainless steel and brass construction with 1.5L capacity. Fits most pressure washers 1000-3600 PSI. Includes 1.1mm nozzle for adjusted foam thickness.
The PWACCS Foam Cannon is an adjustable foam blaster designed to create a thick, snow-like foam when connected to your pressure washer. This foam clings to surfaces for a more effective and thorough clean. The durable stainless steel and brass construction ensures longevity, while the 1.5L capacity offers ample foam solution. With an operating range of 1000-3600 PSI, this foam cannon can attach to most standard pressure washer models.
Key Features:
- Pure stainless steel and all-copper internal structure for durability and leak protection
- Wide neck and large mouth design allows easy filling and cleaning
- Adjustable nozzle ensures ideal spray pattern and foam thickness
- Water regulator knob controls water and foam mix
- 360° rotating nozzle holder tweaks direction
- Transparent 1.5L tank with scale for monitoring usageThe PWACCS Foam Cannon is the ideal cleaning accessory for vehicles, outdoor surfaces, floors, and more. Its adjustable settings and compatibility with most pressure washers makes it a versatile foam blaster.
MTM Hydro PF22.2 Foam Cannon
The MTM Hydro PF22.2 Foam Cannon is a high-quality foam cannon attachment for pressure washers. It produces thick, clinging foam to clean cars, boats, houses, and more. Features an adjustable nozzle, easy-to-use dial to control foam thickness, and durable brass connectors. Fits most electric and gas pressure washers.
The MTM Hydro PF22.2 Foam Cannon is a must-have attachment for any pressure washer. This high-pressure foam sprayer from MTM Hydro generates thick, rich suds perfect for cleaning vehicles, houses, decks, and other surfaces.
Key features and benefits:
- Adjustable nozzle rotates vertically to horizontally for customized spray pattern
- Foam thickness dial allows user to easily adjust soap-to-water ratio
- Durable brass connectors designed for longevity
- Large 32 oz capacity bottle minimizes refills
- Works with most pressure washers from 1100 to 5000 PSI
With the MTM Hydro Foam Cannon, you can turn your regular pressure washer into a professional-grade foam sprayer. The adjustable nozzle and foam control dial make it easy to customize the foam to tackle any cleaning project.
MJJC Foam Cannon S V3.0
The MJJC Foam Cannon S V3.0 is a premium snow foam car wash sprayer that produces a thick, rich lather to gently clean your vehicle’s exterior. This foam cannon connects to pressure washers and features an easy-to-use adjustable nozzle for customizable foam.
The MJJC Foam Cannon S V3.0 is designed to take your car washing to the next level. This high-quality foam cannon produces a thick, creamy foam that clings to your car’s surface to safely lift dirt and grime away.
Key Features and Benefits:
- Thicker Snow Foam Technology creates a rich, dense foam like shaving cream for superior cleaning power
- Adjustable nozzle provides complete control over the foam spray pattern and consistency
- Weighted pickup tube continually stays centered in bottle to use all soap
- Wide mouth opening makes filling and cleaning the bottle simple
- Durable brass connectors won’t crack or strip
With its premium build and advanced foam technology, the MJJC Foam Cannon S V3.0 gives you a professional-grade clean for your vehicle right at home. This foam cannon elevates the car washing experience.
Tool Daily Foam Cannon
The Tool Daily Foam Cannon is an affordable foam cannon that attaches to pressure washers to apply thick, clinging foam for effective car washing. It comes with an adjustable foam nozzle and pressure washer gun.
The Tool Daily Foam Cannon is an excellent foam cannon for pressure washing enthusiasts. This affordable foam cannon attaches to most pressure washers to provide thick, luxurious foam when washing vehicles, equipment, and other surfaces. Key features include:
- Adjustable foam nozzle provides precise control over foam thickness
- Large 1 liter capacity bottle allows foaming the entire vehicle before refilling
- Includes brass pressure washer gun for quick connecting and detaching the foam cannon
- Rated for up to 4000 PSI for use with most residential pressure washers
- Includes 5 different spray nozzles for pressure washing tasks
With its easy connection system, adjustable settings, and bundled accessories, the Tool Daily Foam Cannon is a budget-friendly way to get professional-style foaming action for your pressure washer. The rich foam clings to surfaces for effective cleaning, all at a fraction of the cost of premium foam cannons.
FENG PAI Foam Cannon Pressure Washer Attachment
The FENG PAI Foam Cannon is a high-quality foam sprayer attachment that connects to your pressure washer. It allows you to apply thick, rich foam to clean cars, boats, RVs, and more. Adjustable nozzle provides customizable foam thickness. Durable brass connectors prevent leaks. Transparent bottle for monitoring soap levels.
The FENG PAI Foam Cannon is a must-have accessory for anyone who owns a pressure washer. This high-pressure foam sprayer attaches to your pressure washer wand or gun to provide thick, clinging foam that clings to surfaces for superior cleaning.
Key features and benefits:
- Adjustable nozzle lets you control foam thickness and spray pattern
- Durable brass connectors prevent leaks even at high pressure
- Transparent 1 liter bottle makes it easy to monitor soap levels
- Foam enriched with soap provides extra cleaning power
- Great for washing cars, RVs, boats, siding, and more
With the FENG PAI Foam Cannon, you’ll get professional-grade foam and make washing tasks faster and easier. The rich foam clings to surfaces while you work to lift away dirt, grime, and more. Upgrade your pressure washer cleaning with this must-have foam cannon attachment.
TOOLCY Foam Cannon Kit for Pressure Washers
The TOOLCY Foam Cannon Kit is an accessory for pressure washers that allows you to apply thick, clinging foam to clean vehicles, equipment, and surfaces. The kit includes a 1-liter foam cannon, 5000 PSI pressure washer gun, 5 nozzle tips, and connectors.
The TOOLCY Foam Cannon Kit takes your pressure washing to the next level. This high-quality kit transforms your pressure washer into an easy-to-use foam applicator for car, boat, RV, and equipment detailing. The industrial-grade foam cannon and accessories are designed for durability and versatility.
Key Features:
- Heavy Duty Foam Cannon: 1-liter capacity foam cannon has a seamless brass core and adjustable nozzle for thick, clinging foam. Big fill port makes adding soap easy.
- 5000 PSI Pressure Washer Gun: Commercial grade gun with swivel inlet provides flexibility and prevents hose kinking. Fits most gas and electric pressure washers.
- 5 Nozzle Tips: Includes 0°, 15°, 25°, 40° and 65° nozzles for different spray patterns and cleaning tasks.
- Quick Connectors: Comes with 3/8” swivel quick connector and M22-14mm male coupler for quick changes between accessories.
The TOOLCY Foam Cannon Kit upgrades your pressure washer to quickly and easily apply foaming cleaners to all your equipment and surfaces. The industrial-strength components stand up to frequent use for car washes, fleet washing, patio cleaning, and more.
Raincovo Foam Cannon
The Raincovo Foam Cannon is a high-quality foam cannon that attaches to your pressure washer to help you wash your car, boat, RV, patio furniture and more. It features an adjustable nozzle, easy connections, 1L bottle capacity and durable stainless steel filter.
The Raincovo Foam Cannon is an excellent foam cannon attachment for your pressure washer. This accessory connects easily to pressure washers with either a 1/4 inch or M22 connector and allows you to turn your regular pressure washer into a foam cannon.
Key Features and Benefits:
- Adjustable Nozzle: Rotate the nozzle 360 degrees to control the foam spray pattern and distribute foam evenly. Also adjust the thickness of foam.
- Durable Stainless Steel Filter: Upgraded stainless steel filter is corrosion and acid/alkali resistant for longer life vs plastic filters.
- Clear Bottle Design: See how much soap is left to avoid guessing when the bottle is empty. 1L capacity foams entire car.
- Universal Connections: Works with most pressure washer brands and models. Comes with both 1/4 inch and M22 connectors.
The Raincovo Foam Cannon is a high-quality foam cannon that makes washing your vehicles, outdoor furniture and other items faster, easier and more effective. The adjustable nozzle, durable filter and easy connections make it a great value accessory for your pressure washer.
