This high-pressure extension hose is designed for greater flexibility and durability, featuring a tensile steel wire braid with a rubber cover that is abrasion-resistant. The hose can be used to replace or extend existing hoses, and its flexible design prevents kinking. It is suitable for pressure washers operating between 1000 to 2320 PSI and is designed for cold water use only, with a maximum pressure of 160 bar and temperatures up to 60℃/140℉C. The hose has an M22 thread inlet fitting for screw-type couplers and a clip-type quick connector outlet fitting. The inner diameter is 0.4" (10mm) and the outer diameter is 0.7" (18mm). Please verify the connector size and hose model before purchasing. Installation is straightforward with a quick connect system, allowing for immediate attachment or release of the hose by pressing a lock button on the trigger gun. This unique pipe design saves water and energy. The hose is compatible with most pressure washers and screw thread lances with dual 22mm-14 female twist connections, specifically fitting Karcher K Series K2, K3, K4, and K5 models. It is ideal for cleaning blocked pipes, drains, and rain gutters, as well as for cleaning roads, motorcycles, and cars.