ResMed H4i flip-top lid & seal

This Lid and Seal securely closes and covers the H4i water chamber, whether you're using the dishwasher-safe or standard style. Simply attach your CPAP tubing to the connector on top of the lid to fully utilize the functionality of the H4i water chamber with your ResMed S8 CPAP Machine.

Water Chamber Compatibility
This Flip-Top Lid is compatible with all H4i Heated Humidifiers and can also replace the original Flip-Top Lid on HumidAire 3i Heated Humidifiers. Once the HumidAire 3i lid is replaced, it will be compatible with new H4i Water Chambers. However, after upgrading, it will NOT be compatible with the original HumidAire 3i Water Chambers.