Micro-biological. Unique to DoultonŽ filter elements, a sealing mechanism that gives unrivalled microbiological protection.DoultonŽ ceramic filter candles have an Oligodynamic silver anti-bacterial matrix integrated into the ceramic mix, which inhibits bacterial growth on the filterCS07HM Ultra Sterasyl Ceramic 
Doulton Water Filter Candle (W9121214, W9121215) for Gravity Water Filters   
Designed for use in gravity water filters, these ceramic Doulton water filter candles / cartridges are three stage ceramic cleanable filter cartridges, designed to remove suspended solids, pathogenic bacteria, chlorine, organic chemicals,  in drinking water. In addition they will dramatically improve taste and reduce odours. 

If you are not sure of a part number replacement send us an email with the dimensions of your current filter cartridge along with a picture and we will ensure you receive the correct replacement.

CS07HM Ultra Sterasyl Ceramic Doulton Water Filter Candle (W121214) with Lead Reduction for Gravity Water Filters GSS402, W9361160 Doulton Gravity Water Filter Cutaway of Doulton Ultracarb Drinking Water Filter Cartridge part number CU1200 Cleaning a Doulton Ultracarb Drinking Water Filter Cartridge part number CU1200
CS07HM (7in) Ultra Sterasyl Ceramic Water Filter for used in Gravity Style Water Filters (W9121214) Cutaway showing Bacteria Trapped on Outer Wall of the Doulton Ceramic Simple Cleaning
General Specifications For CS07HM Ultra Sterasyl Ceramic Doulton Water Filter Candle (W9121214)
Maximum Working Pressure Designed for Gravity Units
Maximum Working Temperature 100 F
Minimum Working Temperature 40 F
Recommended Flow Rate NA
Rated Life (stand alone) 400 US gallons
Rated Life (Multiple Systems) See System Specifications

CS07HM Ultra Sterasyl Ceramic Doulton Water Filter Candle / Cartridges (W9121214, W9121215)
Application Guide and Contaminant Removal Chart for this drinking water filter cartridge

P= Purification. R= Reduction> 95%. F= Effective Filtration>90%

Contaminants Removal General Description -Rated life 400 USG
Bacteria P Application: This drinking water filter cartridge is designed for use with well, surface or Chlorinated Municipal water and distribution systems constructed with soldered copper plumbing, galvanized, PVC, or black iron plumbing. This cartridge is also effective for homes which are fed by lead lined or asbestos concrete reinforced water supply mains in their city.

This ceramic drinking water filter cartridge provides: 99.99% rejection of Bacteria, Cysts, absolute depth filtration >.9 micron and effective depth filtration of particulate >.5 micron (dirt, asbestos, iron etc), excellent improvement in Taste, Colour and Odour, plus the added bonus of Chemical and Lead Rejection.

Though not reaching purification standards by itself, this cartridge still produces outstanding rejection of Chlorine (>95%) and Lead (>94%) at its rated life of 400 gallons. Both of these statistics exceed the NSF certification requirements under NSF International Standard 53.  

This ceramic drinking water filter cartridge is easily cleaned and requires no tools to service.
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Cysts P
Taste F
Odors F
Colour F
Chlorine R
Herbicides F
Pesticides F
Lead R
Metals R
Fluoride NA
Nitrates NA
Arsenic NA
Particulate Efficiency (Dirt etc.) Rating
Absolute filtration rating Defined as >99.999% 0.9 micron
Nominal or Effective filtration rating 99.9% 0.5-0.8 micron
99.7% 0.3-0.5m
98.0% 0.2-0.3m
% Bacteria removal E. coli >99.99%
Vibrio Cholera >99.99%
Shigella >99.999%
Salmonella Typhii >99.999%
Klebsiella Terrigena >99.999%
% live Cyst removal Cryptosporidium 99.99%
Giardia 99.99%

Doulton Ceramic Drinking Water Filter Cartridges hold Certification, Accreditation, or Membership with the following Agencies:

ISO 9002 Quality Standard
National Sanitation Foundation standards 42 and 53
Environmental Protection Agency (EPA)
Water Quality Association
Department of Health (Toronto, Canada)
Spectrum Labs (Minneapolis, USA)
Water Research Council (UK)
British 5750 Quality Standard
England's Water Research council (WRc) Performance Standards
California Department of Health
Over 50 Independent Laboratories Worldwide

The following specific removal efficiency testing reports are available: Cryptosporidium Removal, Bacterial (E. Coli) Removal, Particulate Reduction, Lead Reduction, Cyst and Turbidity Reduction, Chlorine Reduction.

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