Coffee machine water filter
Philips AquaClean CA6903 Water Filter
CA6903
Fits 9 models · replace every 3 months
Wrong part, or your model missing? Tell us. A person checks every report.
GenuineGenuine Philips
$29.00
JB Hi Fi · 21 OctLowest genuine · JB Hi Fi · checked 21 Oct
CompatibleCompatible option
$17.22 each
2-pack $34.44
Bunnings · 5 OctBunnings · checked 5 Oct
Check sellerCheck seller details
Genuine: made by Philips. Compatible: another brand. Check certification on the seller's page.Genuine is made by Philips. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $17.22 each · 2-pack $34.44
Bunnings. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Opens Bunnings in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 3 months (or when the machine prompts (about 625 cups)). The app reminds you when it is due.
After replacing: Fit the filter, then activate it in the machine menu (on button-panel models hold the AquaClean button about 3 seconds, then press start; the AquaClean light turns blue when active). Activation resets the cup counter and suppresses the descale alarm until the eighth filter.
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 CA6903 water filter
Watch the guide or follow the steps.
- 1Shake the new AquaClean filter for about 5 seconds.
- 2Hold it upside down in a jug of cold water until air bubbles stop rising.
- 3Push the filter down firmly onto its connection in the water tank and fill the tank to MAX.
- 4Follow the on-screen AquaClean activation — the machine rinses for a minute or two and starts counting the filter's life.
Every number this part goes by
- Retail name:
- AquaClean
- Retail name:
- CA6903
- Part number:
- CA6903/10
- Part number:
- CA6903/22
- Part number:
- CA6903/47
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 9 Philips models
Common questions
- Which water filter fits the Philips CA6903?
- The Philips CA6903 takes the Philips AquaClean CA6903 Water Filter (part CA6903). Compatible filters made to the same specification also fit.
- How often should I replace the water filter in my Philips CA6903?
- 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 CA6903 in Australia?
- We track 2 Australian sellers for the CA6903; the lowest listed price when we last checked was A$17.22 at Bunnings. Prices are re-checked daily and dated on this page.
- How do I fit the CA6903 in a Philips CA6903?
- 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?
- The filter stops softening the water, scale builds in the boiler, and the machine asks to be descaled more often; taste in the cup drops off too.
- How do I reset the filter light?
- Fit the filter, then activate it in the machine menu (on button-panel models hold the AquaClean button about 3 seconds, then press start; the AquaClean light turns blue when active). Activation resets the cup counter and suppresses the descale alarm until the eighth filter.
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