SIZE: Inner Diameter: 0.26" (6mm); Outer Diameter: 0.47" (12mm). Working Pressure: 180bar / 2610psi. Burst Pressure: 540bar / 7830psi. Max Temperature: 60 / 140 Quality Assurance: Both ends of the high-pressure extension hose are equipped with rubber sleeves. The hose is made of high-quality, high-tension woven fiber materials, which has greater flexibility, durability and wear resistance, and is equipped with brass joints, which is more resistant It is durable and rust-proof. Before leaving the factory, each water pipe is subjected to high pressure test to ensure that each water pipe can be used normally. Quick connection: Both C-clip type quick connect, with the Quick Connect system, you can click quickly in and out of the pressure washer and gun, saving you time and effort. A perfect fit that the garden lovers never miss! Convenient storage: Equipped with a storage strap, quickly organize water cleaning extension hose, save more space. COMPATIBLE WITH MOST KARCHER PRESSURE WASHERS FROM K2 TO K7 - The compatible machines includes K 2; K 2 Compact; K 2 Full Control; K 2 Full Control Home; K 2.850; K 4 Compact; K 4 Full Control; K 4 Full Control Home; K 5 Compact; K 7 Compact; K 2 Compact Car & Home; K 2 Premium Full Control Car & Home; K2 Compact Home; K4; K4 Home; K4 Silent Home; K5 Full Control Home. (Please check the fitting conector size carefully when you order the hose.Or contact us confirm the hose model before order.)