IDEXX Laboratories Inc

IDEXX water testing solutions are approved or accepted by regulatory agencies in over 40 countries, protecting billions of people daily, delivering easy, rapid, accurate and cost-effective information on water quality to laboratories, public utilities, and facility managers.

United States

+1 800 321 0207

IDEXX products include Colilert®, published as ISO standard ISO 9308-2 for the 18-hour detection of coliforms and E. coli in water, and Pseudalert® (ISO standard 16266-2) for the 24-hour detection of Pseudomonas aeruginosa in facilities, hospitals, pools and spas.

Other water microbiology methods include Enterolert®-DW for the accurate, rapid detection and enumeration of intestinal enterococci, EasyDisc® for the detection of heterotrophic organisms and Legiolert®, which is specifically targeted towards the detection of Legionella pneumophila, the primary causative agent of Legionnaires’ disease.

All tests and methods are backed up by extensive technical and customer support, and full quality and assurance documentation. The IDEXX QC Laboratory is ISO 17025 accredited and the QC Certificates for Colilert-18, Pseudalert and Enterolert-DW are ISO 11133 compliant.

IDEXX recently introduced a new, automated microbiology testing system, Tecta® to detect the presence of E. coli, coliforms and Enterococcus.

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Filta-Max xpress

Food & BeverageWater

Filta-Max xpress is a filter-processing system for the capture and recovery of Cryptosporidium and Giardia. Principle: Filta-Max xpress is a rapid, efficient technology for the capture and recovery of Cryptosporidium and Giardia. The filter module has been optimized to capture target organisms from a


Food & BeveragePharmaceuticalWater

Colilert-18 is a liquid culture method that simultaneously detects both total coliforms and Escherichia coli in water, giving confirmed results in 18 hours. Principle: The Colilert-18 test uses proprietary Defined Substrate Technology (DST) nutrient indicators ONPG and MUG to detect coliforms and E. coli. Coliforms use their β-galactosidase

Water SARS-CoV-2 RT-PCR Test


The Water SARS-CoV-2 RT-PCR Test is a real-time reverse transcription polymerase chain reaction (RT-qPCR) test that detects and quantifies viral RNA in an appropriately prepared wastewater concentrate sample. When used with the 105 ml concentration protocol, the lowest concentration of SARS-CoV-2 in wastewater that can be detected by the



Enterolert-DW is a liquid culture method that enumerates enterococci in drinking water and bathing water at 1 / 100 mL and 10 / 100 mL MPN respectively in the presence of heterotrophic bacteria in numbers as high as 1,000,000 MPN per 100 mL sample, providing confirmed results within 24 hours. Principle: The Enterolert®-DW Test uses a



Legiolert is a liquid culture method that detects Legionella pneumophila (the primary cause of Legionnaires’ disease) in water samples, giving confirmed results within 7 days. Principle: The Legiolert test detects Legionella pneumophila in potable and non-potable water samples. The Legiolert test is based on a



Pseudalert is a liquid culture method that detects the presence of Pseudomonas aeruginosa in water samples in 24 hours with no additional confirmation steps. Principle: Pseudalert is based on a bacterial enzyme detection technology that signals the presence of Pseudomonas aeruginosa through the hydrolysis of

IDEXX Tecta®


The IDEXX Tecta® system is a complete, self-contained water testing system, providing rapid evidence of bacterial contamination, either within or outside of a traditional laboratory setting. It is a rapid automated water microbiology testing instrument for detection of coliforms, E. coli, faecal coliforms and Enterococci. Principle: Detection of bacterial



EasyDisc™ provides faster, easier quantification of heterotrophic bacteria in water. Principle: EasyDisc offers an easy solution for HPC testing with no agar preparation needed, requiring less than one minute of hands-on time to process a sample. Positive results appear as blue colonies, removing any ambiguity of results, and colony

Microbiology Product Areas


Coliforms Show all suppliers
Cryptosporidium/Giardia Show all suppliers
E. coli Show all suppliers
Enterococci Show all suppliers
Legionella pneumophila Show all suppliers
Legionella spp. Show all suppliers
Pseudomonas aeruginosa Show all suppliers