this is the Elbow for the Fisher & Paykel Vitera Full Face Mask with Headgear. When combined with the Fisher & Paykel Swivel these two parts facilitate the connection to the CPAP hose, directing the incoming air into the cushion, where it can be used as part of your therapy. The Fisher & Paykel Swivel is the round cylinder, color-coded with a blue ring around the top, that connects to the elbow assembly just below the logo. The Elbow for the Vitera is also a cylinder, but it's curved and connects to the frame near the circular opening towards the front of the mask.
