Dirt blaster Rotating point jet Bayonet connection Dimensions (L×W×H): 450 x 41 x 41 mm Karcher Db 145 Dirt Blaster Spare Lance K4-K5 | 2.642-728.0 The dirt blaster for all Kärcher pressure washers in classes K 4 and K 5 removes even atmospheric dirt effortlessly with its powerful middle rotary nozzle with rotating point jet. This means that you can remove stubborn dirt, like on mossy or weathered surfaces, in no time and return surfaces to a shine. The dirt blaster also offers a large area performance. Compatibility: For old trigger guns pre 2010 (gun M, 96, 97): Adapter M (2.643-950.0) required. Features Rotating point jet - Effective removal even of stubborn dirt on delicate surfaces. Powerful cleaning with high pressure - Targeted cleaning of stubborn dirt. Bayonet connection - Extremely user-friendly.