This is the plastic cover used with the Resmed HumidAire H4i Heated Humidifier. The package includes the silicone seal below the tube connector. This cover can also be placed on top of an H4i Standard Water Chamber (26952 sold separately) to enable compatibility with the H3i humidifier of older S8 machines.
Please Note: To use this lid with the H3i Humidifier, please purchase the H4i Water Chamber (Click Here)