The Doulton W9331028 includes the following water filters:
The Doulton Dual Counter Top Ceramic Filter - W9331028 is a countertop filter that connects to the mixer tap through the diverter valve. The Doulton HCPS includes the Supercarb ceramic water filter, which reduces pathogenic bacteria, Cryptosporidium, Giardia, chlorine taste & odor, organic, rust, and other particles down to 0.5 microns. The Doulton ceramic filter improves the taste of drinking water and increases clarity.
Doulton Dual Counter Top Ceramic Filter - W9331028 specifications: