Karcher invented the high-pressure washer & continues to reinvent it again & again. Karcher versa grip trigger gun was designed with dual action triggers, providing multiple ways to spray & enabling you to clean at any angle. The shoulder stock allows you to use your body as an anchor, providing a secure grip while relieving stress from your fingers, hands & wrist. The ergonomic design features over molded grips, providing comfortable & secure handling. Compatible with most gas pressure washers to 4000 PSI. Its fittings easily attach to standard spray wands & high pressure hoses.