Self-priming functionality A 5-meter water inlet hose that self-primes, pulling water efficiently without the need for pumps. This enables flexible cleaning in varied environments and away-from-tap scenarios. Impressive filtering capability Built-in filtration removes impurities from the water supply to support smooth operation of your high-pressure washer and help extend its service life. Compatibility Designed specifically for K2, K3, K4, and K5 models, providing reliable compatibility and consistent performance across these machines. Material and design Made from sturdy plastic with a transparent housing that lets you monitor flow, while delivering durability under high pressure. Use scenarios - Car, motorcycle, or bicycle cleaning where the water source is away from the washer; place the hose in a water container and let it self-prime for efficient cleaning. - Outdoor surface cleaning such as patios, driveways, decks, and garden furniture where continuous use is needed and you want to monitor flow through the transparent housing. - Tool and equipment maintenance or light cleaning in locations without an immediate water connection, using a portable water source to power cleaning tasks.