The Doulton W9331032 is a countertop gravity-fed filter system that connects directly to your kitchen faucet via a diverter valve. It uses the renowned Doulton Ultracarb ceramic filter candle, which combines a 0.5–0.9 micron ceramic outer shell with an activated carbon block core and ion-exchange media. Water passes through the ceramic layer to trap sediment and pathogens, then through the carbon core to reduce chlorine, taste, and odor—delivering purified drinking water right at your countertop without the need for permanent plumbing modifications.

The Doulton W9331032 with the Ultracarb candle reduces a wide range of contaminants, including 99.99% of bacteria (such as E. coli, cholera, and cryptosporidium), cysts, turbidity, sediment, rust, and particulate matter down to 0.5–0.9 microns absolute. The activated carbon block core effectively reduces chlorine, chemicals, VOCs, bad tastes, and odors, while the ion-exchange resin helps reduce lead and other heavy metals—giving you cleaner, safer, better-tasting water.

Yes. The Doulton Ultracarb ceramic filter candle used inside the W9331032 system is tested and certified to NSF/ANSI Standard 42 (aesthetic effects such as chlorine, taste, and odor reduction) and NSF/ANSI Standard 53 (health effects including lead and cyst reduction). The ceramic shell itself is manufactured to meet strict performance standards, ensuring reliable sub-micron filtration for residential drinking water applications.

The Doulton Ultracarb filter candle inside the W9331032 has a rated filtration life of approximately 600 gallons or 6 months, whichever comes first, under normal residential use. One major advantage of the Doulton ceramic candle is that its exterior can be cleaned and reused multiple times—simply scrub the ceramic surface under running water with a soft brush to restore flow rate when it slows, extending the usable life of the cartridge.

No. The W9331032 Countertop Filter System is designed for tool-free installation. It comes with a diverter valve that quickly attaches to most standard kitchen faucets, allowing you to switch between filtered and unfiltered water with a simple lever. Because it sits on your countertop and does not require drilling, under-sink space, or permanent plumbing, it's an ideal solution for renters, RVs, and anyone wanting premium Doulton ceramic filtration without a complex setup.