The Kärcher 4350 PSI Nozzle #5.5/6 Dirt Blaster Rotary Turbo Nozzle (9.302-442.0) combines the high power of a solid 0° pencil jet with the large coverage area of a fan jet. By rotating at approximately 4,000 RPM, the Dirt Blaster can deliver 10 times the impact pressure of conventional fan jet nozzles for even and effective cleaning. Made with a ceramic nozzle, bearing ring and very few moving parts, Kärcher’s Dirt Blaster is the industry hallmark.