Made of high quality material, durable and practical to use. Delicate and exquisite, highly compatible with the original equipment. Offers higher heat resistance and stretchability, and is easier to install. Solid and durable, with a long service life. Without this sealing ring, the nozzle of the steam cleaner may cause back spray of steam during use, which could potentially lead to burns. When the sealing ring shows signs of aging or damage, replace it promptly. Replacement O-ring set for various steam cleaner accessories, including safety lock, detail nozzle, extension, steam hose, and iron connection. A useful spare part set for continuous operation. Heavy-duty O-rings suitable for pressure washers and steam cleaners. Fits behind the nozzle, on the lance and high-pressure hose (that screws onto the machine) on HD and HDS series machines. Also compatible with K2, K3, K4, K5, K6, and K7 models. Number: 2.640-729.0 Color: as shown Material: Plastic Package Contents: 1 set x Seal ring (20 pcs) Only the above package content is included; other items are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.