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Doulton® 7" Imperial Super Sterasyl Candle Water Filter Element

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  In Stock
  •   Model # W9121302
  •   Brand Doulton
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NSF 42, 53 Certified

Made in the UK
Filtered Water Benefits the Whole Family
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  (1) 7" Imperial Super Sterasyl will produce 10 gallons per day in a gravity filter.
  • Contaminant Removal: Pathogenic bacteria, Cysts, Sediment
  • Organic Chemicals: Pesticides, herbicides, organic solvents, trihalomethanes.
  • Chemicals: Chlorine

Doulton Imperial Super Sterasyl Candles are available as replacement/upgrade candles for Doulton, British Berkefeld, and other Gravity Filters.

Imperial Candles are not available as original equipment in British Berkeld or Doulton Gravity Filters. They are only available as after market upgrades, even though these are Doulton Branded Products.

Doulton Ceramic Filter Elements have been trusted by relief organizations around the globe for over 150 years. These filters were developed in 1850 to remove disease causing bacteria from London's Thames River.

This cleanable ceramic water filter element is designed to reduce suspended solids, pathogenic bacteria, organic chemicals, and improve taste and odor. The 7" Super Sterasyl ceramic element is available only as a "candle" (fitted with a threaded plastic cap on one end).

Compare Doulton Cartridge Types

The bore of the filter ceramic candle contains granular activated carbon to reduce organic chemicals and improve the color, taste, and odor of drinking water.

This filter element is suitable for gravity and low pressure filter systems; it is not recommended for high pressure (high flow rate) systems. If used in pressure filters, the GAC granules may shift and "channelize" which could allow water to flow through the filter without and contact with the GAC.

Maximum working pressure 125 psi (8.6 bars)
Maximum working temperature 100 °F (37.8 °C)
Minimum working temperature 40 °F (4.4 °C)
Recommended cleaning frequency every 6 months or when flow rate is noticeably lower
Recommended change frequency every 12 months
Contaminant Removal The great majority of pathogenic (disease causing) bacteria and cysts are larger than one µ. The pore size of the ceramic filter element is controlled so that it will remove all suspended matter larger than 0.9 µ.
Pathogenic Bacteria Chorela, Typhoid, Salmonella, Serratia, E. Coli, Fecal Coliform: >99.99% removal
Cysts Cryptosporidium parvum and Giardia lamblia: 100% removal (based on tests by Arizona State University)
Sediment Down to 0.9 µ, 100%; 0.5-0.8 µ with a filter efficiency of >99.99% (based on tests by Spectrum Laboratories, Minneapolis, MN)
  Some restrictions apply to the sale of ceramic filters in the states of CA, WI, MA & IA. Call for details.