Silicone Seal for FlexiFit 431, 432 & Forma Full Face CPAP/BiPAP Masks Size:Large is specially designed for Z1

is specially designed for Z1 & Z2 Travel CPAP Machines but it is also compatible with a wide range of other CPAP and BiPAP machines that have "15mm" or "slim" tubing options

This Double Boil 'n Bite Mouthpiece is designed for use with all CPAP PRO II (ApneaPAP) 'No Mask' Interfaces

It is designed for use with all Airfit F20

while a ball-and-socket swivel eliminates tubing drag and promotes freedom of movement

The Tubing Wrap will help insulate the hose from cooler outside air

Silicone Seal for FlexiFit 431, 432 & Forma Full Face CPAP/BiPAP Masks Size:Large is specially designed for Z1This clear (white) Silicone Seal is designed for use with all Forma (40047X), FlexiFit 431 (HC431) and FlexiFit 432 (HC432) Full Face CPAP BiPAP Masks. Please note that the FlexiFit 431 uses only the Silicone Seal while the Forma and FlexiFit 432 masks use both a Foam Cushion and Silicone Seal.