A tight seal for your G4 outlet
The SP-711 is the genuine Inogen One G4 cannula barb — the small outlet nozzle that connects your nasal cannula to the device for a tight, leak-resistant seal. It is not a filter. You remove and reseat it whenever you change the output filter beneath it. G4-only.
A fresh, well-fitting barb holds your cannula securely so oxygen reaches you, not the room. Because the output filter sits right beneath it, keeping a spare makes monthly maintenance fast.
Shop the compatible concentrator: Inogen One G4
Holds the cannula firmly and seals the output channel on the G4 outlet.
Press-fit by hand in minutes — you'll remove it anyway when changing the output filter.
Made to the G4 outlet spec so it seats smoothly without tools.
Details
What's included
Why genuine matters
Frequently asked questions
Is the cannula barb a filter?
When should I replace it?
Does it fit the G5 or Rove 6?
Not sure this is the right part?
Send us a photo or call — we'll confirm the exact part for your unit.
Call (786) 755-8063
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