This is the replacement cushion and clip for the Mirage Quattro Full Face Mask. The cushion is not compatible with other Mirage masks like the Ultra Mirage. The cushion, cushion clips and frame are NOT interchangeable.
Remember that a small cushion fits on small masks, medium on medium masks, and large on large masks. Each frame has a specific size so mixing cushions will not work as it does on ResMed nasal masks.