Description
Overview
These Doulton (Fairey) ceramic filters are made in England and built for serious water quality protection. Each cartridge removes more than 99.99% of bacteria and cysts, making them a solid choice for homes on tank, bore, or rural supply. The ceramic shell gives long service life and can be cleaned when the flow starts to slow. Designed for standard 10-inch housings, they’re simple to swap out and suit a range of water setups across New Zealand.
Key features
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High-level bacteria protection: Each model achieves over 99.99% removal of harmful microorganisms.
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Durable and reusable design: The ceramic element can be washed and reused several times.
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Consistent flow: The fine ceramic structure keeps up good flow rates without losing filtration quality.
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Versatile fit: Works in most 10-inch standard or jumbo housings used across NZ filter systems.
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No chemicals or power: Operates entirely through natural filtration, ideal for sustainable setups.
Filter Options
|
Specification |
Sterasyl |
Supercarb |
Ultracarb |
Rio 2000 |
|
Width |
2" |
2" |
2" |
4.5" |
|
Height |
10" |
10" |
10" |
10" |
|
Housing Type |
10" Standard |
10" Standard |
10" Standard |
10" Jumbo |
|
Cyst Reduction |
>99.99% |
>99.99% |
>99.99% |
>99.99% |
|
Bacteria Reduction |
>99.99% |
>99.99% |
>99.99% |
>99.99% |
|
Turbidity Reduction |
>99.99% |
>97% |
>97% |
>97% |
|
Chlorine Reduction |
n/a |
>97% |
>97% |
n/a |
|
Lead Reduction |
n/a |
n/a |
>98.3% |
n/a |
|
Capacity |
3800 L |
2300 L |
10000 L |
10000 L |
|
Flow @45 PSI |
5 LPM |
2 LPM |
2 LPM |
33 LPM |
|
Nominal Micron |
0.9 |
0.9 |
0.9 |
0.9 |
|
Absolute Micron |
0.5 |
0.5 |
0.5 |
0.5 |
Where to use it
These cartridges are a great match for homes running under-sink filters, tank-fed systems, or UV setups that need a bacteria barrier. The Rio 2000 model is well-suited to larger flow applications like small commercial systems or whole-house filtration.
Pro tip
When cleaning, use a soft cloth or non-abrasive pad under running water. Avoid soap or detergent, plain water does the trick. Let the element dry fully before reinstalling for the best performance.
FAQs
1. How do I know which Doulton filter I need?
If you’re filtering untreated water, start with the Sterasyl. For better taste and odour control, go with the Supercarb or Ultracarb.
2. Can these filters be cleaned and reused?
Yes. When flow slows down, just remove and gently clean the ceramic surface with water and a soft cloth.
3. How often should I replace the filter?
Usually once a year, or sooner if you notice a persistent drop in flow even after cleaning.
4. Do these filters remove chlorine or chemicals?
Only the Supercarb and Ultracarb models include carbon for chlorine and chemical reduction.
5. Will this fit my existing housing?
If your system uses a standard 10" or 10" jumbo housing, these filters will fit without adapters.


