Griot's Garage The BOSS Foam Cannon for Pressure Washers — 33.8 oz Auto‑Mix, Stainless Steel Manifold, Thick Snow Foam

The BOSS Foam Cannon from Griot's Garage is a professional-grade pressure-washer foam gun that delivers thick, clingy snow foam quickly and without pre-mixing.

Designed for detailers and enthusiasts, The BOSS transforms a standard pressure washer into a high-output foam system that covers vehicles evenly, loosens dirt, and shortens wash time. Built with a precision-machined stainless steel manifold and an Auto-Mix system, it combines durability and convenience so you can apply soap directly from concentrate bottles without manual dilution. The kit includes a 33.8 oz jar, extra metering tips, and compatibility with Griot’s Garage bottles to fit most setups.

How does The BOSS improve my car wash results?

The BOSS lays down a dense, clinging foam that adheres to paintwork longer than a spray-only wash, helping to suspend dirt for gentler removal. Foam coverage reduces the need for aggressive scrubbing and helps deliver a more consistent clean across large surfaces.

• Creates thick snow-foam that lifts road grime and bugs
• Clings to vertical surfaces for extended dwell time
• Reduces contact friction when rinsing and mitt-washing
• Adjustable fan pattern for targeted or wide coverage

What makes the Auto-Mix system user-friendly?

Instead of measuring and premixing, you screw a compatible concentrate bottle into the Auto-Mix feed and the cannon meters the correct dilution automatically. This streamlines setup, minimizes spills, and speeds up multiple passes when detailing several vehicles.

• Accepts Griot’s Garage 22 oz and 35 oz bottles plus included 33.8 oz jar
• Simple bottle swap for different cleaners—no measuring cup needed
• Reduces waste and messy mixing at the sink or bucket
• Extra metering tips let you fine-tune dilution for pressure and soap type

Is The BOSS durable and serviceable for frequent use?

The core manifold is machined from stainless steel to resist wear from repeated use and various pressure-washer setups. Like all foam cannons, wear and particulate can affect performance over time, so The BOSS is built for easy maintenance and compatible with a rebuild kit for quick servicing.

• Stainless-steel manifold for long-term corrosion resistance
• Stainless quick-coupler plug for secure pressure-washer connection
• Includes spare metering tips and reservoirs to extend service intervals
• Recommend keeping a Foam Cannon Rebuild Kit on hand for upkeep

Which pressure washers and nozzles work best with this foam cannon?

The BOSS is designed to pair with both gas and electric pressure washers by changing included jets to match flow rates. The nozzle is adjustable from a concentrated 0° jet to a 40° fan, giving flexibility for tight spots or broad coverage.

• 1.1mm jet recommended for most gas pressure washers
• 1.25mm jet recommended for many electric units
• Adjustable spray pattern for varied applications—truck, car, RV
• Compatible with common quick-coupler styles, check pressure specs before use

Who this is for: The BOSS is aimed at enthusiasts, weekend detailers, and professional cleaners who want faster, cleaner pre-wash coverage and a robust tool that stands up to repeated use. If you value easy setup, adjustable foam output, and a durable build that accepts ready-to-use concentrate bottles, this foam cannon streamlines the wash process for small cars up to large trucks and RVs. Keep a rebuild kit nearby if you run high-frequency washes to maintain consistent foam performance.