All Doulton® and British Berkefeld® ceramic filter elements are manufactured under International Standards Organisation (ISO) conditions. They have the highly consistent and controlled pore structure necessary to provide genuine sub micron filtration. All claims with regard to the performance of Doulton ceramic filter elements have been verified by independent laboratory testing.

Filtration Rating (percent particulate filtration efficiency)

Flow Rate

Quality Approval

Pathogenic Organisms (percent bacterial removal)

Pathogenic Organisms (percent cyst removal)

Working Pressure

Working Parameters

Capacity (minimum)

Click for History of the Doulton Filter

Doulton Silver Sterasyl Ceramic Filter--CER-S--$44.95. ORDER NOW! VIEW CART/CHECKOUT.

Filter CER-S. Doulton Silver Sterasyl Ceramic Microfilter cartridge for CTD-C and UCD-C. Can also be used in any industry-standard housing designed for 9 3/4" cartridges. Effectively removes greater than 99.99% of harmful bacteria, cysts (Cryptosporidium, Giardia), and sediment down to an absolute 0.9 micron.  Removes 99.9% of particles down to 0.5 microns. The cartridge can be cleaned up to 40 times (about once per month). 3 to 5 year life. Click for Performance Data. 3 year prorated warranty. Suggested Retail - $79.00, Sale Price - $44.95. ORDER NOW! VIEW CART/CHECKOUT.

Filter CER-I. Doulton Imperial Silver Sterasyl Ceramic Microfilter cartridge for our Inline Under-counter filters. Same same specifications as above CER-S but larger, measuring 2.75" x 9.75".  Click for Performance Data. 3 year prorated warranty. Suggested Retail - $99.00, Sale Price - $64.95. ORDER NOW! VIEW CART/CHECKOUT.

Filter UltraCarb.  Doulton UltraCarb uses the same ceramic shell as the Silver Sterasyl above and adds a 1 micron carbon block core for chlorine, chemical and lead reduction. Suggested Retail - $99.00 - Special Pricing - $64.95. ORDER NOW! VIEW CART/CHECKOUT.