If you've lost or damaged the spray gun or high pressure hose included with your Karcher K2, K3, K4 or K5 electric pressure washer, this is an economical replacement for both and a genuine Karcher accessory kit. The spray gun's connections are Karcher-specific Quick Connect (for the high pressure hose) and Kärcher bayonet (for spray wands). Child safety lock. Max 2,000 psi. PLEASE NOTE: Not compatible with any Karcher pressure washers with hose reels; also not compatible with Karcher K1700-K2000 electric pressure washers, Karcher gas pressure washers or other brands of pressure washers.