W Foam Cannon Pressure Washer Attachment — 32 oz Wide-Mouth Bottle, 1.1 mm Nozzle for Thick Clingy Foam

The Wash Chems Foam Cannon is a pressure-washer attachment with a 32 oz wide-mouth bottle and 1.1 mm orifice that produces thick clingy foam for faster, more even vehicle pre-washing.

Built to fit most electric and gas pressure washers, this foam cannon combines a heavy-duty HDPE wide-mouth reservoir, a stainless steel quick connector, and a precision nozzle to turn soap and water into a dense blanket of active foam. It is rated for pressure washers from 800–3,500 PSI and flows between 1.4–5.3 GPM, giving it broad compatibility with common consumer and light-commercial washers. The goal is to improve coverage and dwell time so cleaning agents spend more time working on road grime and bugs before rinsing.

How does the foam cannon improve a regular car wash?

The cannon produces a thicker, more uniform layer of foam than a spray bottle or garden-hose foam sprayer, helping cleaning solution cling to vertical surfaces longer. That longer dwell time helps loosen contaminants so rinsing or gentle mitt work removes more grime with less risk of abrasion.

• Thick foam from a 1.1 mm orifice for improved surface coverage.
• Wide-mouth 32 oz bottle enables easy mixing and fewer refills.
• Compatible PSI/GPM range to work with most consumer pressure washers.

Will this foam gun fit my pressure washer and how do I attach it?

The Wash Chems Foam Cannon is built to attach via a stainless steel quick connector that fits many popular pressure washer setups. It supports washers rated 800–3,500 PSI and 1.4–5.3 GPM; verify your machine’s specs and connector type to ensure compatibility.

• Stainless steel quick connector for fast, secure attachment.
• Works with both electric and gas pressure washers in the specified range.
• Designed for repeat use with a leak-resistant connection.

How do I get the best foam and which soap should I use?

For dense, clingy foam start with the recommended ratio of vehicle-safe foam concentrate to water and adjust dilution until you get desired thickness. Agitate gently after filling the bottle, connect to your pressure washer, and test spray on a vertical surface to dial in output and spray pattern.

• Use a pH-balanced active foam car soap for safe, effective sudsing.
• Adjust dilution and pressure washer flow to control foam density.
• Clean and rinse the bottle and nozzle after use to maintain performance.

Who is this for? The Wash Chems Foam Cannon is aimed at car owners, detailers, and DIY enthusiasts who use a pressure washer and want faster, gentler pre-washing. It suits anyone who wants easier coverage on cars, trucks, motorcycles, RVs, and trailers—especially when minimizing scrubbing and protecting painted finishes is a priority. If you already own a compatible pressure washer and want a durable, easy-to-fill foam tool with reliable connections, this unit is a practical, cost-effective upgrade for routine and pre-detail washes.