Precision fit and finish: Our Oring kit is precisely crafted to match original equipment, delivering a reliable seal and broad compatibility with Kärcher pressure washers. Heat resistance and stretchability: Made from quality materials with heat resistance and elasticity, this kit is easier to install and provides a secure, longlasting fit. Versatile compatibility: Suitable for Kärcher electric models K2, K3, K4, and K5, as well as earlier versions. This kit provides the parts needed to service trigger guns, spray lances, and pressure hoses. Note: not compatible with Kärcher K1700K2000 series. Essential for routine maintenance: Regular replacement of Orings helps extend the life of your pressure washer. This kit is essential for maintaining performance and reducing downtime due to worn parts. Use scenario: Performing routine service on a Kärcher K2–K5 electric pressure washer to refresh seals in the trigger gun, spray lance, and hose connections. Use scenario: Before heavy cleaning tasks or seasonal use, Orings to prevent leaks and preserve pressure. Use scenario: If you notice leaks, reduced pressure, or hose connection issues, install this kit to restore sealing integrity.