The Doulton Super Sterasyl® ceramic and GAC (Granular Activated Carbon) water filter cartridge is ideal for rain/tank water use or low water pressure area.

It is a highly efficient ceramic microfilter which provides genuine sub micron filtration to your drinking water.

The Doulton Super Sterasyl is a two stage cartridge combining the highly efficient filtration properties of ceramic with the enhanced water treatment properties of activated carbon. It carries a filtration efficiency of 99.99% at 0.9 micron absolute and 99.9% efficiency at 0.2 micron nominal.

We recommend replacing this cartridge every 12-24 months dependent on water quality and usage. Suits all (standard) 10” housings.

2-Stage filtration process

Stage 1 – Doulton ceramic

This stage reduces fine particulate matter, bacteria, cysts and turbidity. The incorporation of silver locked within the ceramic structure gives enhanced bacteriostatic and self sterilising properties.

Stage 2 – Carbon block 1 micron post filter

An inner core of activated carbon block removes chlorine and organic compounds.

Effectively Removes

  • Aluminium
  • Barium
  • Cadmium
  • Chlorine
  • Chromium
  • Copper
  • Cryptosporidium & Giardia
  • Cysts
  • e. Coli Bacteria
  • Heavy Metals
  • Hydrocarbons
  • Iron
  • Lead
  • Manganese
  • Mercury
  • Nitrate
  • PCB’S
  • Potassium
  • Radium
  • Sediment, Dirt & Rust
  • Selenium
  • Sodium
  • Taste
  • Odour


The Doulton Sterasyl cartridge is available in 3 sizes:

Slimline 2” x 9 ¾”
Imperial 2 ¾” x 9 ¾”*
Sovereign 4 ½” x 9 ¾”*
*The Imperial and Sovereign cartridges can be supplied with an additional adaptor cartridge in order that they may fit appropriately within 20” (whole house/high flow) housings/filter systems.