The Puretec X4 takes the Puretec IL150Q silver-impregnated inline cartridge for X4 as its water filter; replace it every 12 months; Australian sellers list it from A$149.00 as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your filtered water tap
Puretec X4
Tap or under-sink system
Confirmed against Puretec's listConfirmed against Puretec's own compatibility list
Not yours? ChangeSave it · remind me every 12 months
Takes the IL150Q water filter
IL150Q silver-impregnated inline cartridge for X4 · replace every 12 months · check the code printed on your old filter before ordering.
Your filtered water tap
Tap or under-sink system
Confirmed against Puretec's listConfirmed against Puretec's own compatibility list
Takes the IL150Q
Water filter · every 12 months · check the code on your old filter.
Other Puretec filtered water taps and their filters
The IL150Q fits the X4 only. These Puretec models take a different water filter:
GenuineGenuine Puretec
$149.00
eBay AU · 26 OctLowest genuine · eBay AU · checked 26 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Puretec. Compatible: another brand. Check certification on the seller's page.Genuine is made by Puretec. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest price · $149.00
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AUD, before delivery. Each price shows when it was checked.
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Not due yet?
Get a nudge when your water filter is due — it's every 12 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the water filter in your Puretec X4
Watch the guide or follow the steps.
- 1Put a container under the filter to catch drips.
- 2Turn off the water and open the filtered tap to let the pressure out.
- 3Pull the tubes out of the push-in fittings at each end of the old cartridge and throw the cartridge away.
- 4Unwrap the new cartridge and push the tubes into each end, with the flow arrow pointing the way the water runs.
- 5Turn the water back on, check for leaks and run the tap for 5–10 minutes; milky water is just air and clears.
Every number this part goes by
- Retail name:
- IL150Q
Sellers list any of these; they are the same part.
About your Puretec X4
Puretec filtered water tap, tap or under-sink system — Puretec X series inline under-sink filter. Its water filter is the IL150Q silver-impregnated inline cartridge for X4, part IL150Q, changed every 12 months.
Where the model number is: On a boiling or chilled water tap the model is on the label on the unit under the bench, not on the tap itself. On an under-sink system it is on the filter head or housing; the cartridge code is printed on the old cartridge.
Fits this Puretec model
Puretec1 model
Common questions
- Which water filter fits the Puretec X4?
- The Puretec X4 takes the Puretec IL150Q silver-impregnated inline cartridge for X4.
- How often should I replace the water filter in my Puretec X4?
- Every 12 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the IL150Q in Australia?
- We track 2 Australian sellers for the IL150Q; the lowest listed price when we last checked was A$149.00 at eBay AU. Prices are re-checked daily and dated on this page.
- How do I fit the IL150Q in a Puretec X4?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- The carbon stops reducing chlorine taste and odour and the flow from the tap slows as the cartridge clogs; a boiling-water tap with a scale-reducing filter builds scale in its tank faster.
- Is there anything to reset afterwards?
- No reset light. Write the date on the cartridge.
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