Chemical Guys Big Mouth Max Release Foam Cannon (EQP324)

Name: Big Mouth Max Release Foam Cannon (EQP324)
Brand: Chemical Guys
Price: 99.99 USD
Availability: InStock

kit

7.3*/10

CarCareTruth ScoreRecommended

7.29.55.9

CarCareTruth Score

Recommended.

Provisional, owner feedback still building · reviewed Jun 2026

Ranks #4 of 14in Foam Cannon→

$99.99

Priced as of June 1, 2026

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See our ranked guide: Gifts for the Car-Lover Dad Who Has Everything (2026)

How we score →

The Podium · Top 3 in Foam Cannon

See the full ranking →

This product ranks #4 of 14 in Foam Cannon.Three above it ↓

CCT

CarCareTruth's Analysis

Last reviewed June 1, 2026

TL;DR At 1,500·2,500 PSI, multiple top owners confirm thick, clingy foam blanketing the vehicle · dwell time in seconds not documented; stainless fittings claimed by manufacturer, 3-year ownership video positive.

What it is and how it performs

A 34 oz wide-mouth pressure washer foam cannon with a 1/4-inch quick-connect fitting, adjustable ratio knob, and rotating fan-pattern nozzle. Community reviews from a solid, well-rated owner base describe thick, clingy foam at typical home-detailer setups; both controls are confirmed functional. Stainless steel fittings are listed in manufacturer feature bullets · independent community confirmation of materials is not available. Body resin code is not labeled.

Who should buy this · and who should skip it

Best for home detailers running a 1/4-inch quick-connect pressure washer at 1,500·2,500 PSI who want thick foam and a wide-mouth bottle. Note: listed as an Amazon Add-On Item · requires a qualifying cart total to purchase. Skip if your lance is M22 and you do not own a quick-connect adapter.

Safety and environmental impact

Physical hardware with no chemical exposure pathway · health score 9.5 (Minimal Risk). Plastic body with stainless fittings scores average on lifecycle and recyclability; no documented shedding under normal use.

Frequently asked questions

What pressure washer is compatible with the Chemical Guys Big Mouth Foam Cannon?▾

The Big Mouth uses a universal 1/4-inch quick-connect fitting that attaches to most standard consumer gas and electric pressure washers with a simple click. It is not M22-threaded · if your lance is M22, you will need a separate M22-to-1/4-inch quick-connect adapter (not included). Community foam-thickness reports at typical home-detailer setups (1,500·2,500 PSI) confirm thick output.

Is this an Amazon Add-On Item?▾

Yes. The Rainforest API metadata for ASIN B091KLW5Y8 flags is_add_on_item: true, which means Amazon requires a qualifying cart total to purchase this cannon on its own. Add it to a larger order · pairing with a car-wash soap order is a natural fit.

Are there durability or leak complaints?▾

A failure-mode scan for ASIN B091KLW5Y8 found zero reports of leaks, stripped threads, gasket failure, or seal failure in use. The plastic bottle can crack if dropped · this is drop-damage, not a use-failure, and below the 3-distinct-owner threshold this site uses to flag a documented pattern. One video title references a 3-year ownership review (positive).

How do I clean the cannon between sessions?▾

Run plain water through the unit for 30·60 seconds at the end of each session to clear residual soap. The 34 oz bottle unscrews for rinsing, and it disassembles quickly for easy cleaning. Letting the cannon dry before storage prevents dried soap from clogging the jet orifice.

From the manufacturer

Marketing copy from Chemical Guys, via Amazon. Not editorial.

•BIG MOUTH MAX FOAM CANNON (EQP324) – Trusted by detailers and DIYers, this pressure washer foam cannon blasts thick, clinging suds to wash cars, trucks, SUVs, boats, and more with ease
•WIDE MOUTH DESIGN – The car wash foam cannon has a large fill opening that prevents spills and makes adding soap quick and mess-free; 34 oz bottle holds enough solution for multiple washes
•MAXIMUM FOAM OUTPUT – Adjustable nozzle and air injection system of this Chemical Guys foam cannon delivers thick, shaving cream–like foam that clings to surfaces, loosening dirt and grime
•VERSATILE CLEANING TOOL – Perfect for automotive washes, boat cleaning, siding, patios, and more; this car foam sprayer safely cleans a wide variety of painted, coated, and sealed surfaces
•PRESSURE WASHER FOAM GUN BUILT TO LAST – Heavy-duty construction with stainless steel fittings and durable seals ensures reliable performance and long service life
•BEYOND VEHICLES – This pressure washer soap cannon is ideal for boats, RVs, motorcycles, and home exteriors; easily connects to pressure washers for powerful, efficient cleaning anywhere
•PERFECT FOR ANY VEHICLE – A foam car wash sprayer that is ideal for cars, trucks, motorcycles, and SUVs; deep cleans paint, wheels, and trim and makes washes easy
•UNIVERSAL QUICK-CONNECT FITTING – These foam cannons attach to most standard pressure washers with a simple click
•SOAP CANNON FOR PRESSURE WASHER – Aerates soap and water to create clinging suds that break down dirt and grime
•FUN, FAST & EFFECTIVE WASHING – Our foam sprayer car wash accessories make washing your ride easy, efficient, and way more fun