This is the replacement tube retainer for the Mirage Swift LT and Swift LT For Her. The item snaps onto the Swift LT Headgear and holds the tubing on top of the user's head.

If you use the SnuggleHose Cover for Swift Pillow System, the plastic retainer has a small, fixed diameter, making use with the SnuggleHose cover difficult. ResMed suggests using the Velcro Tube Retainer instead of the plastic version.