Oral-B iO Series 9 brush head
The Oral-B iO Series 9 takes the Oral-B iO Ultimate Clean Brush Heads (part iO Ultimate Clean) as its brush head; replace it every 3 months. Fitment confirmed against the manufacturer's compatibility list.
Appliance confirmed before purchase
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Your electric toothbrush
Oral-B iO Series 9
Electric toothbrush · iO
Takes this filter
iO Ultimate Clean Brush Heads
iO Ultimate Clean
The right brush head for iO Series 9
Oral-B iO Ultimate Clean Brush Heads
- Replace every 3 months
- Fits inside the fridge
- Fits 7 models
Oral-B's standard iO head: a round head with the iO's magnetic drive, for every iO Series handle (2 to 10). Change every three months or when the indicator bristles fade.
- Fits
- All iO Series handles
- Change
- Every 3 months
Every number this part goes by
- Retail name:
- Oral-B iO Ultimate Clean
Where to buy
Every seller we track for this part, cheapest first. Genuine is the manufacturer's own part; compatible is a third-party filter made to fit. Prices are re-checked daily where the seller publishes them. Last checked 6 September 2026.
How long it lasts
Replace every 3 months — the appliance's filter light tells you when.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point of the filter.
Not due yet?
This filter is due every 3 months. We'll email you when it's time — free, no spam.
Fitting it
A few minutes, no tools. Watch it done, then follow the steps.
- 1Pull the old brush head straight off the handle's metal shaft — no twisting.
- 2Push the new head on until it stops; a small gap between head and handle is normal.
- 3Change heads every 3 months, or as soon as the blue indicator bristles fade to white.
About your Oral-B iO Series 9
Oral-B electric toothbrush, electric toothbrush — iO. Its brush head is the iO Ultimate Clean Brush Heads, part iO Ultimate Clean, changed every 3 months.
Also in this electric toothbrush: Oral-B iO Gentle Care Brush Heads (every 3 months), Oral-B iO Radiant White Brush Heads (every 3 months), Oral-B iO Braces & Orthodontic Brush Heads (every 3 months). Worth replacing together — one job, not two.
Checking the model number: Look at the underside of the handle or the charger base: iO handles are marked iO with the series number; other handles carry the range name (Vitality, Pro, Smart, Genius) on the body.
Fits these models
Common questions
- Which brush head fits the Oral-B iO Series 9?
- The Oral-B iO Series 9 takes the Oral-B iO Ultimate Clean Brush Heads (part iO Ultimate Clean).
- How often should I replace the brush head in my Oral-B iO Series 9?
- Every 3 months, or sooner if it looks worn.
- Where can I buy the iO Ultimate Clean in Australia?
- We link to 1 Australian seller for the iO Ultimate Clean; the seller's page shows the current price.
- How do I fit the iO Ultimate Clean in a Oral-B iO Series 9?
- No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.
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