Have you lost or damaged the trigger gun that came with your pressure washer? This replacement gun is equipped with industry-standard M22 hose and spray wand connections. Fits Kärcher gas and most other brands of pressure washers that have M22 connections. Please consult your owner's manual for compatibility information. Max 4000 PSI, 140°F/60°C. Includes child safety lock. WARNING: This product can expose you to chemicals including lead and Diisononyl phthalate, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.