CPAP machine water tub
ResMed HumidAir 11 Standard tub
39100
Fits 4 models · replace every 6 months
Wrong part, or your model missing? Tell us. A person checks every report.
GenuineGenuine ResMed
$60.00
CPAP Club · 1 NovLowest genuine · CPAP Club · checked 1 Nov
CompatibleCompatible option
$42.49
Amazon AU · 28 OctAmazon AU · checked 28 Oct
Check sellerCheck seller details
Genuine: made by ResMed. Compatible: another brand.Genuine is made by ResMed. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $42.49
Amazon AU. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 7 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Genuine ResMed
6 sellers
Opens Amazon AU in a new tab. Their page is the source of truth for price, delivery and returns.
Not due yet?
Get a nudge when your water tub is due — it's every 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the 39100 water tub
Watch the guide or follow the steps.
- 1Stop the machine, unplug it and allow 10 minutes for it to cool.
- 2Hold the tub at the top and bottom, press it gently and pull it out of the side of the machine.
- 3Open the old tub and tip out any water.
- 4Fill the new tub to the maximum water mark with distilled water.
- 5Close the tub and slide it into the side of the machine.
Every number this part goes by
- Retail name:
- 39100
- Retail name:
- HumidAir 11
- Retail name:
- HumidAir 11 Standard
- Retail name:
- HumidAir 11 Standard tub
Sellers list any of these; they are the same part.
Will it fit your appliance?
Type your model number and we'll check it against the makers' lists.
Fits these 4 ResMed models
HumidAir 11 Standard tub (white grip): fill with distilled water only; ResMed gives it a design life of 6 months.
Common questions
- What does the 39100 fit?
- The ResMed HumidAir 11 Standard tub (part 39100) fits 4 ResMed models, including the AirCurve 11 ASV, AirCurve 11 VAuto and AirSense 11 AutoSet. Every one is listed on this page.
- How often should I replace the 39100?
- Every 6 months, or sooner if it looks worn.
- Where can I buy the 39100 in Australia?
- We track 7 Australian sellers for the 39100; the lowest listed price when we last checked was A$42.49 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 39100?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A cracked or leaking tub needs replacing; the manual says when to replace it otherwise.
- Is there anything to reset afterwards?
- No reset: the machine has no tub-life counter to clear.
Something looks wrong with the 39100 match? . Reports go to a person, not a bot.