Simultaneously detects both total coliforms and Escherichia
coli in water, or fecal coliforms in wastewater, giving you results in 18
hours. Available in Presence/Absence and Quantitative test formats.
Colilert-18 is the only 18-hour Coliform and E.
coli test verified by Department of Health (DOH).
U.S. EPA approved and included in Standard
Methods for Examination of Water and Wastewater.