BnineteenteamRotating Spray Turbo Nozzle, 1/4in High Pressure Washer Turbo Nozzle 3600PSI 3.0 GPM Rotating Spray Tip Quick Connection Cleaning Tool

It's alittle expensive, but cuts down the work by around 60% so in my book, totally worth the money.

Great nozzle for the money glad I bought one, I had bought a cheaper one previously that turned out to be rubbish, this nozzle definitely works much better seems to have a nice flow getting through it with my karcher k4, no complaints 👌