The iRobot Roomba 105 Combo + AutoEmpty takes the iRobot Filter 3-Pack (Roomba Combo Essential & 105) (part 4837321) as its filter; replace it every 3 months; Australian sellers list it from A$35.26 as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your robot vacuum
iRobot Roomba 105 Combo + AutoEmpty
Robot vacuum
Confirmed against iRobot's listConfirmed against iRobot's own compatibility list
Not yours? ChangeSave it · remind me every 3 months
Takes the 4837321 filter
Filter 3-Pack (Roomba Combo Essential & 105) · replace every 3 months · check the code printed on your old filter before ordering.
Your robot vacuum
Robot vacuum
Confirmed against iRobot's listConfirmed against iRobot's own compatibility list
Takes the 4837321
Filter · every 3 months · check the code on your old filter.
Other iRobot robot vacuums that take the 4837321
GenuineGenuine iRobot
$35.26
Amazon AU · 26 OctLowest genuine · Amazon AU · checked 26 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by iRobot. Compatible: another brand.Genuine is made by iRobot. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $35.26
Amazon AU. Every seller we track is listed 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
- iRobot Dirt Disposal Bags 3-Pack (AutoEmpty & AutoWash docks)Open Amazon AU$7.25 each · 4-pack $28.99
The dust bag. Separate from the filter.
Compare 3 sellers - iRobot Multi-Surface Bristle Brush (Roomba 105)Open Amazon AU$18.01 each · 2-pack $36.01
The main brush. Separate from the filter. Replace every 6 months.
- iRobot Washable Mop Pads 3-Pack (Roomba Combo Essential & 105 Combo)Open Amazon AU$15.60 each · 2-pack $31.20
The mop cloth. Separate from the filter. Replace every 3 months.
- iRobot Edge-Sweeping Brush 3-Pack (Roomba Essential, 105, 205, Plus 405/505, Max 705 Vac)Open Amazon AU$6.74 each · 4-pack $26.97
The side brush. Separate from the filter. Replace every 3 months.
Compare 2 sellers
AUD, before delivery. Each price shows when it was checked.
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 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 iRobot Roomba 105 Combo + AutoEmpty
Watch the guide or follow the steps.
- 1Press the bin release button and remove the bin.
- 2Open the bin door and take the filter out.
- 3Fit the new filter with the ridged grips facing out.
- 4Put the bin back in the robot.
Every number this part goes by
- Retail name:
- 4837321
Sellers list any of these; they are the same part.
About your iRobot Roomba 105 Combo + AutoEmpty
iRobot robot vacuum — Roomba 100 series. Its filter is the Filter 3-Pack (Roomba Combo Essential & 105), part 4837321, changed every 3 months.
Also in this robot vacuum: iRobot Dirt Disposal Bags 3-Pack (AutoEmpty & AutoWash docks), iRobot Multi-Surface Bristle Brush (Roomba 105) (every 6 months), iRobot Washable Mop Pads 3-Pack (Roomba Combo Essential & 105 Combo) (every 3 months), iRobot Edge-Sweeping Brush 3-Pack (Roomba Essential, 105, 205, Plus 405/505, Max 705 Vac) (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 iRobot models
Common questions
- Which filter fits the iRobot Roomba 105 Combo + AutoEmpty?
- The iRobot Roomba 105 Combo + AutoEmpty takes the iRobot Filter 3-Pack (Roomba Combo Essential & 105) (part 4837321).
- How often should I replace the filter in my iRobot Roomba 105 Combo + AutoEmpty?
- Every 3 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the 4837321 in Australia?
- We track 2 Australian sellers for the 4837321; the lowest listed price when we last checked was A$35.26 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 4837321 in an iRobot Roomba 105 Combo + AutoEmpty?
- No tools, a few minutes: 4 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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