Wide UsageThe replacement hoses fit K series (K2 - K7) 2009 or later pressure washers, where the hoses are connected to the gun and the pressure washer with a quick connect fitting. Your gun must have a yellow button (not black) for our hose to work. CompatibilityCompatible machines include K 2; K2 Compact; K2 Full Control; K2 Full Control at Home; K 2.850; K4 Compact; K4 Full Control; K4 Full Control at Home; K5 Compact; K7 Compact; K2 Compact Car and Home; K2 Premium Full Control Car and Home; K2 compact house; K4; House K4; K4 Silent House; K5 Full Control Start. Flexible and Durable The high pressure extension hose has a rubber sheath, which increases flexibility, is durable and wear resistant, and is compatible with Karcher thread pressure washers. High pressure wire braided high pressure cleaning hose with rubber sheath. Easy to use The high pressure hose is easy to handle, with new professional Karcher pressure fittings on both ends. With the quick connect system, you can quickly insert and remove the pressure washer and spray gun, saving your time and effort. Excellent PerformanceMaximum rated pressure up to at 2610 PSI/180 Bar and maximum temperature 140/60.