This elbow connects the CPAP machine and the standard 22mm or 15mm CPAP tubing. It changes airflow directions by 90 degrees. Compatible to any CPAP machine using plastic tubing (heated tubing is NOT compatible).
I saw this ResMed CPAP Tubing Elbow and purchased it immediately.
It fits great and fills the need to get the hose coming off the back of my ResMed CPAP pointed upwards or to the side.
I have no idea why it took ResMed this long to figure this out.
Fits perfectly and does exactly what it's supposed to do.