This is the Complete Elbow Assembly (including Anti-Asphyxia Valve and Clip, Elbow, and Swivel) for all Mirage Quattro, Quattro FX, and Quattro FX For Her CPAP/BiLevel Masks. Individual parts, as shown, as also available separately.
Usage Information: Recent versions of this elbow do not include the crenelated edges on the end of the elbow closest to the mask. Instead that end is replaced by a solid, ridged circle. This elbow is NOT compatible with Quattro Air full face masks.