Jura C9 water filter
The Jura C9 takes the Jura CLARIS Smart+ Filter Cartridge (part 24232OS) as its water filter; replace it every 2 months; Australian sellers list it from A$27.00 as of 6 September 2026. Fitment confirmed against the manufacturer's compatibility list.
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Your coffee machine
Jura C9
C9
Takes this filter
CLARIS Smart+ Filter Cartridge
24232OS
The right water filter for C9
Jura CLARIS Smart+ Filter Cartridge
- Replace every 2 months
- Fits inside the fridge
- Fits 9 models
The Jura CLARIS Smart+ (article 24232, sold in Australia as 24232OS) is the RFID-chipped cartridge for Jura machines with the Intelligent Water System. The machine detects the filter, routes water through it and tells you when its capacity is used up. Jura rates it at 40 to 65 litres depending on water hardness and cites TÜV Rheinland hygiene certification for its maintenance products.
Reduces
- limescale / hardness
- Capacity
- The capacity of the filter cartridge depends on the water hardness. at 1-5° dH: up to 65 l; at 6-10° dH: up to 60 l; at 11-15° dH: up to 55 l; at 16-20° dH: up to 50 l; at 21-25° dH: up to 45 l; at 26-30° dH: up to 40 l
- Certification
- JURA coffee machines were certified as extremely hygienic by independent international testing organisation TÜV Rheinland ... JURA maintenance products ... guarantee TÜV-certified hygiene
- Detection
- Thanks to the integrated RFID (Radio-Frequency-Identification) chip, the CLARIS Smart continuously records information about filter use and alerts the user when the filter capacity has been used up
- Automatic filter mode
- CLARIS Smart is automatically detected by the coffee machine and water is automatically routed through it
- Hygiene
- The water filter technology ensures greater hygiene in the coffee machine, starting in the water tank itself
- Article number
- 24232 (AU listing 24232OS)
Every number this part goes by
- Retail name:
- 24232
- Retail name:
- Claris Smart Plus
- Retail name:
- CLARIS Smart+
- Part number:
- 71793
- Part number:
- 71794
- Replaces:
- CLARIS Smart
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 2 months (~50 L or 2 months) — the appliance's filter light tells you when.
After fitting: No manual reset: the RFID chip is read when the cartridge is fitted, the machine switches to filter mode and rinses, and it prompts for a change when capacity is used. On models with the filter extension, twist the old cartridge anticlockwise to remove, clip the extension onto the new one, push in and twist clockwise until it clicks.
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 2 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.
Step-by-step instructions for this filter are being checked against the manufacturer's guide.
About your Jura C9
Jura coffee machine — C9. Its water filter is the CLARIS Smart+ Filter Cartridge, part 24232OS, changed every 2 months.
Checking the model number: The model and serial are on a sticker on the underside of the machine.
Fits these models
Common questions
- Which water filter fits the Jura C9?
- The Jura C9 takes the Jura CLARIS Smart+ Filter Cartridge (part 24232OS). Compatible filters made to the same specification also fit.
- How often should I replace the water filter in my Jura C9?
- Every 2 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the 24232OS in Australia?
- We track 4 Australian sellers for the 24232OS; the lowest listed price when we last checked was A$27.00 at The Good Guys. Prices are re-checked daily and dated on this page.
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