The eufy RoboVac 35C takes the eufy Filter Set (RoboVac 11S / 25C / 35C) (part T2906021) as its filter; replace it every 3 months; Australian sellers list it from A$3.73 as of 5 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your robot vacuum
eufy RoboVac 35C
Robot vacuum
Confirmed against eufy's listConfirmed against eufy Australia's compatibility list
Not yours? ChangeSave it · remind me every 3 months
Takes the T2906021 filter
Filter Set (RoboVac 11S / 25C / 35C) · replace every 3 months · check the code printed on your old filter before ordering.
Your robot vacuum
Robot vacuum
Confirmed against eufy's listConfirmed against eufy Australia's compatibility list
Takes the T2906021
Filter · every 3 months · check the code on your old filter.
Other eufy robot vacuums that take the T2906021
GenuineGenuine eufy
$19.95
Eufy Au · 21 OctLowest genuine · Eufy Au · checked 21 Oct
CompatibleCompatible option
$3.73 each
4-pack $14.92
Amazon AU · 5 OctAmazon AU · checked 5 Oct
Check sellerCheck seller details
Genuine: made by eufy. Compatible: another brand. Check certification on the seller's page.Genuine is made by eufy. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $3.73 each · 4-pack $14.92
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.
Other parts this robot vacuum takes
- eufy Rolling Brush (RoboVac 11S / 25C / 35C, G15 / G20 / G30 / G35+ / G40 Hybrid+)Open Amazon AU$8.49 each · 2-pack $16.98
The main brush. Separate from the filter. Replace every 12 months.
Compare 4 sellers - eufy Side Brush (RoboVac 11S / 25C / 35C, G10 / G15 / G20 / G30 / G35+ / G40 Hybrid+)Open Amazon AU$1.83 each · 6-pack $10.98
The side brush. Separate from the filter. Replace every 3 months.
Compare 3 sellers
Compare 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Opens Amazon AU in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 3 months. The app reminds you when it is due.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point.
Not due yet?
Get a nudge when your filter is due — it's every 3 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your eufy RoboVac 35C
Watch the guide or follow the steps.
- 1Press the release on the back of the robot and slide the dust bin out.
- 2Lift the blue pre-filter grille off the back of the bin and take out the old pleated filter.
- 3Fit the new filter, press the grille back on and slide the bin back in until it clicks.
Every number this part goes by
- Retail name:
- T2906021
Sellers list any of these; they are the same part.
About your eufy RoboVac 35C
eufy robot vacuum, robot vacuum — RoboVac. Its filter is the Filter Set (RoboVac 11S / 25C / 35C), part T2906021, changed every 3 months.
Also in this robot vacuum: eufy Rolling Brush (RoboVac 11S / 25C / 35C, G15 / G20 / G30 / G35+ / G40 Hybrid+) (every 12 months), eufy Side Brush (RoboVac 11S / 25C / 35C, G10 / G15 / G20 / G30 / G35+ / G40 Hybrid+) (every 3 months).
Where the model number is: Turn the robot over: the model name and serial are on the label on the underside. The model name is also on the top lid of most robots.
Fits these 3 eufy models
eufy3 models
Common questions
- Which filter fits the eufy RoboVac 35C?
- The eufy RoboVac 35C takes the eufy Filter Set (RoboVac 11S / 25C / 35C) (part T2906021). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my eufy RoboVac 35C?
- Every 3 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the T2906021 in Australia?
- We track 2 Australian sellers for the T2906021; the lowest listed price when we last checked was A$3.73 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the T2906021 in a eufy RoboVac 35C?
- No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A clogged filter loses suction, worn brushes miss edges, and a stale mop cloth smears rather than cleans.
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