The 24 inch Humidifier Hose with Rubber Ends is the same quality item that comes as standard with virtually all stand-alone heated or passover humidifiers. It will work with most of the available models. The extra length of the 24 inch hose is useful with the Fisher & Paykel heated humidifiers.
All CPAP.com brand hoses are smooth bore designed. This means there are no ridges inside the hose for air pressure to resist against. The hose is supported by a molded plastic frame is located on the outside of the hose. This design provides consistent pressure delivery and ensures a quieter performing hose.
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