Karcher Quick-Connect Dirtblaster Spray Nozzle for 2,400/2,500 PSI Pressure Washers 91230010 Quick-connect Dirtblaster spray nozzle increases cleaning power by up to 50% Ideal for hard-to-clean surfaces Sprays water with jets that rotates at over 3,000 rpm Provides extra cleaning power for dirt, moss, and mold on hard surfaces Designed for 2,400/2,500 PSI Karcher gas pressure washers