The Doulton Ultracarb Cartridge

The Doulton Ultracarb (CER1) is a cleanable ceramic cartridge specifically designed for use with tank water.

Key Features

  • Micron: 0.9
  • Great tasting, healthier water without removing essential minerals
  • Ideal for tank water
  • Easy cleanable surface for prolonged cartridge life
  • Formulation tested to remove 99.99% of bacteria*
  • Formulation tested to remove 95% lead and 90% chlorine*
  • Replacement: 12 months*


For highly efficient tank water filtration, the submicron Doulton Ultracarb is an ideal three-stage cartridge. The Doulton Ultracarb combines enhanced ceramic technology, activated carbon water treatment and heavy metal reducing ion exchange media.

The tiny pores in this ceramic cartridge mimic the actions of rocks in nature, letting drinking water flow through while micro filtering bacteria and pathogens, but allowing healthy minerals to remain. Measuring 0.9 micron (100 times smaller than a human hair) these pores work to protect your family from harmful contaminants, leaving great tasting, healthier water to flow through your tap.

The Doulton Ultracarb is formulation tested to remove 99.99% of bacteria, parasites and particles – such as potentially harmful pathogenic organisms like giardia, cryptosporidium, e-coli, cholera, typhoid kiebsiella terrigena and shigella.

The pore size and structure are expertly manufactured to consistently reduce a wide range of contaminants over the cartridge’s lifetime. Doulton is world renowned with hundreds of years of experience providing families with clean, healthy drinking water since its beginnings in 1826. Doulton’s commitment to the highest standards is built on years of innovation backed by UK manufacturing, ensuring top quality every time you replace your cartridge.

Because the Doulton Ultracarb’s outer ceramic surface is designed to catch and filter a large range of contaminants such as sediment, dirt and parasite cysts (like giardia and cryptosporidium), this may cause the cartridge’s flow to reduce over time. The Doulton Ultracarb can be conveniently restored to its normal flow level during its 12-month period of use with a little DIY maintenance. Simply remove the ceramic cartridge from its housing and gently scrub clean with a brush or a lightly abrasive pad for an extended life and improved flow.

Although the Doulton Ultracarb reduces disinfection products found in town water (such as chlorine) this cartridge is best recommended for use with water supplies high in sediment such as tank water. This 10” cartridge can conveniently fit into most portable Bench Top Water Filters and Under Sink Filtration Systems.


*Based on testing of cartridge formulation conducted both internally and externally by Doulton.

Please note, all cartridges may be subject to replacement earlier than the recommended period. This is dependant on individual usage and varying Australian water quality.

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