High quality and durable. Made of high-quality material, durable and practical for everyday use. Precise fit, compatible with original equipment. Enhanced heat resistance and elasticity for easier installation. Robust construction ensures long service life. Without this sealing ring, the steam cleaner nozzle may experience steam backflow during operation, which could pose a safety risk. Replace promptly if the seal shows signs of aging or damage. Replacement O-ring set for various steam cleaner accessories, including safety lock, detail nozzle, extension wand, steam hose, and iron connection. A practical spare part kit for uninterrupted operation. Heavy-duty O-rings designed for pressure washers and steam cleaners. Fits behind the nozzle and on the threaded hose connection (that screws onto the machine) for all HD and HDS series machines. Also compatible with K2, K4, K5, K6, and K7 models. Part Number: 2.640-729.0 Color: As shown Material: Rubber (O-ring standard material; “Plastic” corrected to appropriate sealing material) Package Contents: 1 set x Sealing ring (20 pieces) Note: The package includes only the items listed above. Other accessories are not included. Please note: Screen settings and lighting conditions may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.