Quick answer: This is the genuine ResMed elbow assembly (part 16566) for the Ultra Mirage II nasal mask — a complete assembly that includes the elbow, swivel, vent cover, and elbow clip. It's where the tubing connects to the mask, and it carries the mask's exhalation vents (under the vent cover) that quietly release exhaled air. Replacing the whole assembly restores the tubing connection, the swivel, and the vent in one part. Fits the Ultra Mirage II nasal mask. This is a vented CPAP part. No prescription required.
What's included
- 1 × elbow · 1 × swivel · 1 × vent cover · 1 × elbow clip
About this part
The elbow assembly is the tubing connection at the front of the Ultra Mirage II nasal mask — and it does a few jobs at once:
- Connects the tube — the elbow and swivel let the hose rotate freely, so you can move and change position without tube drag or breaking the seal, and detach the hose easily.
- Vents exhaled air — the assembly carries the mask's diffused vent (under the vent cover), quietly releasing exhaled air away from you (this is a vented CPAP mask; the vent must stay clear).
- Clips to the frame — the included elbow clip secures the assembly to the mask frame.
Replacing the whole assembly is the simple fix when the elbow cracks, the swivel wears or binds, the vent cover is damaged, or the clip is lost.
Compatibility: the ResMed Ultra Mirage II nasal mask. (Note: the original Ultra Mirage and the Ultra Mirage Full Face use different parts.)
Key features
- Genuine ResMed Ultra Mirage II nasal elbow assembly (16566).
- Complete — elbow + swivel + vent cover + elbow clip.
- 360° swivel — free tube movement; easy hose detach.
- Carries the mask vent — quiet diffused exhalation (keep clear).
- For the Ultra Mirage II nasal mask — vented CPAP part.
Specifications
| Specification | Detail |
| Product type | Nasal mask elbow assembly (vented) |
| Compatible mask | ResMed Ultra Mirage II nasal |
| Includes | Elbow, swivel, vent cover, elbow clip |
| Not included | Mask, frame, cushion, headgear |
| Function | Tubing connection (swivel) + diffused exhalation vent |
| Vent type | Vented (CPAP) |
| Related parts | Vent cover 16575 · swivel 16565 · elbow clip 16572 (2pk)/16573 (10pk) |
| Material | Latex-free |
| HCPCS | A7035 |
| Prescription | Not required |
| ResMed reference / SKU | 16566 |
| Brand | ResMed |
Frequently asked questions
What's included? The complete elbow assembly — elbow, swivel, vent cover, and elbow clip. The mask, frame, cushion, and headgear are separate.
Which mask does it fit? The ResMed Ultra Mirage II nasal mask. (The original Ultra Mirage and the Ultra Mirage Full Face use different parts.)
What does the vent cover do? It sits over the mask's exhalation vent, which quietly diffuses exhaled air away from you. Keep the vent clear — don't block it.
Why replace the whole assembly? It's the simple fix when the elbow cracks, the swivel wears or binds, the vent cover is damaged, or the clip is lost. Individual parts (vent cover 16575, swivel 16565, clips 16572/16573) are also available if you only need one.
Do I need a prescription? No — this replacement part does not require a prescription.
Can I get it delivered in Brooklyn or shipped nationwide? Yes — Task Supply Corp offers USPS shipping throughout the continental U.S., plus local pickup and delivery in Brooklyn and all five boroughs of New York City.
This is a vented nasal CPAP mask part. Use with a compatible ResMed Ultra Mirage II nasal mask according to the mask's user guide, and keep the vent clear.