Elbow Seal for PR SystemOne 60 & 50 Series CPAP/BiPAP Machines

The Humidifier Elbow Seal for PR System One 60 & 50 Series Machines is the replacement silicone ring located on the underside of the heated humidifier lid around the base of the humidifier elbow. The seal is designed to prevent moisture from escaping around the humidifier elbow into the CPAP/BiPAP machine. It should be replaced any time it is damaged, lost or worn; or if you notice leaks from your humidifier.