* 19mm Diameter CPAP Hose with standard 22mm Rubber End connectors on both ends allows it to fit all CPAP Masks and Sleep Therapy Machines and Pillows.
* Compatible with Respironics , Resmed , Devilbliss , Fisher&Paykel and all other major CPAP/BIPAP machines
* Premium Hose is smooth on the inside due to the smooth bore design  
* The flexibility of this tubing allows you easily move around the pillow and bed without causing a mask leak which will ensure proper sleep therapy.