This silicone gasket fits between the Flip Lid and the Water Chamber on all H5i Heated Humidifiers to create a seal.
This silicone seal / gasket is used with H4i Long Life Humidifier Chambers to seal the top of the chamber (tub) to the bottom chamber plate, thus preventing water leakage. It should be inserted into the groove on the water chamber whenever the chamber is in use.
PMI Probasics, CareFusion -
These round silicone gaskets are designed for use with all Zzz-PAP, ComfortPAP, and PureSom CPAP machines and humidifiers.