IMP700 7" Doulton Ceramic Drinking Water Filter Super Sterasyl Candle/Element/Cartridge: Doulton ceramic super sterasyl drinking water filter candles are two stage cleanable filtration candles, designed to remove suspended solids, pathogenic bacteria, chlorine, organic chemicals and hydrogen sulphide. In addition they will dramatically improve taste and reduce odors.

IMP700 Doulton Ceramic Drinking Water Filter Candle cleaning IMP700 Doulton Ceramic Drinking Water Filter Candle
Doulton IMP700 Super Sterasyl
(IMP700 is 7x2.75 in)
Cutaway showing Bacteria Trapped on Outer Wall of the Doulton Ceramic Simple Cleaning
General Specifications:
Maximum Working Pressure 125 PSI
Maximum Working Temperature 100 F
Minimum Working Temperature 40 F
Recommended Flow Rate 8 gpd (Gravity only)
Rated Life (stand alone) 2000 Imp gallons
Recommended Cleaning Frequency Only on flow rate reduction
Size Length = 7in. x 2.75in. od.

IMP700 Super Sterasyl Ceramic Element Removal Efficiencies

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

Contaminants Removal General Description -Rated life 2000 Imperial Gallons
Bacteria P Application: These long mount cartridges are designed for use with gravity fed systems such as the GSS, GLP, CCP, BIS, series of gravity housings.

Strengths: 100% rejection of bacteria, cysts and effective depth filtration of particulates >.5 micron. This system also provides excellent rejection of Chlorine and VOC's. Candles are easily cleaned and require no tools to service.


These statistics meet or exceed the NSF certification requirements under NSF International Standard 42 and 53.

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Cysts P
Taste F
Odors F
Colour F
Chlorine R
Herbicides F
Pesticides F
Lead NA
Metals NA
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 100%
Giardia 100%
Doulton holds 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, Cyst and Turbidity Reduction, Chlorine Reduction.

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