. durable and practical to use. Delicate and exquisite, highly match the equipment. Has higher heat resistance and stretchability, and is easier to install. Solid and durable, long service life. Without this sealing ring, the nozzle of the steam cleaner will cause the phenomenon of back spray steam when in use, which is likely to cause burns. So when you find that the sealing ring is aging and , please replace it in time. Replacement O-ring set for replacement of O-rings for diverse steam cleaner accessories. Including safety lock, detail nozzle, extension, steam hose and iron connection. Useful spare part set for uninterrupted use. Heavy duty KARCHER O-rings for s and steam cleaners. Fits behind the nozzle. on the lance and HP hose (that screws onto the machine)on all HD and HDS machines. Also fits K2 K3 K4 K5 K6 K7 Number: 2.640-729.0 Colour:As Shown Material:plastic Package Contents: 1 set x O Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.