Psi-105p With Doulton Ultracarb Ceramic Carbon Cartridge
- UK Made Ceramic Filter
- USA Made housing
- PFAS Reduction
- Bacteria Rated
PSI-105P Countertop Water Filter — Doulton UltraCarb® Ceramic Carbon (0.5 Micron)
The PSI-105P countertop system uses the Doulton UltraCarb® ceramic carbon cartridge with a 0.5 micron rating for treatment of Giardia and Cryptosporidium cysts (99.999% as specified), plus lead and most harmful bacteria. Rated for 4,000 litres, and now also listed as PFOA & PFOS (“forever chemicals”) rated.
Why Choose This System?
- Doulton UltraCarb® ceramic carbon — trusted ceramic + carbon filtration in a countertop format.
- 0.5 micron rating — treatment of Giardia & Cryptosporidium cysts (99.999% as specified).
- Lead reduction — listed for lead treatment.
- Bacteria treatment — listed for many harmful bacteria including E. coli, Cholera, Shigella, Salmonella, Klebsiella, Terrigena and others.
- Rated for 4,000 litres (as specified).
- PFOA & PFOS rated — “forever chemical” performance as listed.
- Ready to install — product comes complete, ready for installation.
How It Works
- Single-stage ceramic + carbon filtration — the UltraCarb® ceramic carbon cartridge combines fine ceramic filtration with carbon treatment, targeting cysts, lead, and a broad range of bacteria as specified.
Performance & Capacity
- Cartridge — Doulton UltraCarb® ceramic carbon
- Micron rating — 0.5 micron
- Cyst treatment — Giardia & Cryptosporidium (99.999% as specified)
- Lead — listed for lead treatment
- Bacteria — listed for E. coli, Cholera, Shigella, Salmonella, Klebsiella, Terrigena and others
- Capacity — rated for 4,000 litres
- PFOA & PFOS — “forever chemical” rated (as specified)
Performance varies depending on local water conditions and usage. Replace cartridges on schedule for best results.
Connection & Compatibility
These countertop systems will fit a standard size aerator thread:
- 13/16″ (approx 22mm) if the thread on the spout is male
- 15/16″ (24mm) if the thread in the spout is female (using the supplied adapter)
If the aerator thread is not standard size these units will not fit.
Click here for how Countertop systems are connected and operate
Replacement Cartridge
- Replacement cartridge — Doulton UltraCarb® 10″
Warranty
Backed by a 10 year warranty for peace of mind. View warranty details.
Need Help Choosing?
If you’re unsure which filter suits your water, check our guide here: Click here for selection advice

