Faecal contamination in a water sample is measured with the Target Tube Escherechia coli (E.coli). The qPCR analysis on E.coli is fast and accurately quantifies the presence of this species. Can be used in combination with other faecal indicators, such as Bacteroides dorei (article number U20042) and Enterococcus (article number 20045). Target Tubes are packed per 50 pieces and are ready to use. The shelf life is at least 1 year at room temperature, if stored in the dark.