Make of food grade with high heat resistance and resistance, ensuring long-term use without deformation or water leakage Applicable models: Suitable for 400, 600 and H12 series humidifiers; 4D6-800, 4D7-300, 4D7-800, 4DTS300, 4DTS400, 4DTS900, H12 series H12 30 00HB, 0HB, 400HB, H12 600, H10 400, H12 001, H12 300, H12 400, H10400, H12001, H12300, H12400, H12600 Console Humidifier; 426300, 426700, 427300, 436300, 447301, 447400HB, 447401, 496600, 496800, 497300, 497800, 4161, 4262, 4273, 4362, 4371, 4962, 4963, 4968, 4971, 4973 humidifier; 696 Series Credenza 696100, 696400, 696400HB, 696800, 697400, 6 97500, 697500HB, 6964, 6974 h Bottle valves Cap is make of, elastic spring can be applied for a long time; Ensures proper Water flows in Humidifier; Extra Seal rings prevents any leaking Humidifier Bottle Cap with valves Assembly Replacement for Part 1980, 1B-5060000 valves Assembly Cap fits on the bottom of water bottle for the humidifier; Easy installation, none tools required