7-Inch Super Sterasyl filter elements for British Berkefeld
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Replacement Filter for British Berkefeld. These come 1 to a pack. Super Sterasyl ceramic filters are manufactured to the following international standards and have been tested and approved by the following independent bodies or agencies: ISO-9000: 2000, Hyder Labs – UK, Spectrum Labs – UK, WRc – Mednenham UK, Clare Microbiology – UK, Loughborough University - UK, University of Arizona – USA, Thresh, Beale, and Suckling – UK, and WRc Gwent – UK.