Karcher 24" Stainless Steel Spray Wand for Pressure Washers, 4000 PSI Rating The Karcher Promise: Cleaner. Quicker Karcher 24-inch stainless steel spray wand fits most brands' pressure washers with a M22 connection (to the trigger gun) Accepts quick connect spray nozzles and accessories Works with Karcher gas pressure washers (up to 4000 PSI) and electric models K1900 and K2000