This is the six foot hose with the sensor line installed. This hose is required for use with the GoodKnight 420S and 420E CPAP machines. It is also required for the GoodKnight 425 and KnightStar 330 bilevel machines.

This hose is not required for the 420G and 420SP CPAPs, which do not require a sensor line. Those CPAPs use a standard CPAP hose sold elsewhere on our site.

All brand hoses are smooth bore designed. Smooth bores have no ridges inside the hose for air pressure to resist against. The supportive wire frame is located on the outside of the hose. This design provides consistent pressure delivery and ensures a quieter performing hose.