This tube works on my ResMed S9, however it doesn't latch into the machine the way the one that came with it does. I haven't had any problems with it coming off, however. The one thing I'm not sure about is whether this hose heats the air like the original did. I don't think so. But the humidity chamber does that so I think it's still functional. If you are very sensitive to humidity or temperature this hose might not be the best choice. It works fine for me.
Verified purchase: Yes | Condition: New
Good product, good price.
Verified purchase: Yes | Condition: New
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