Hose or pipe or Karcher pump hose, special custom fit, directly attaches to various Karcher pump sizes K1 K2 K3 K4 K5 K7. It is 8 meters long, strong, and resistant to sun and heat, it doesn't kink like the plastic one that comes with the pump and doesn't last. It's very convenient as the pump stays fixed in place and far away while you move the hose without moving the pump and the power cord, organizing your space. You'll only have the pump hose connected to the gun for the pump, saving you the trouble of dragging the pump and its power cord. Very convenient for washing cars and yards. Treat it like a regular water hose but with high pressure for a Karcher pump. This hose is for you and for life.