Colisure - Coliform and E. coli Testing



Colisure coliform/E.coli results are definitive at 24 hours and can be read for up to 48 hours for convenience. This test's distinct magenta color means there's no mistaking a positive result. Colisure also suppresses high levels of non-coliforms including aeromonas. Colisure is US EPA-approved and is included in Standard Methods for Examination of Water and Wastewater.

Colisure is easy to use, rapid and accurate


  • Definitive results at 24 hours, can be read up to 48 hours.
  • Distinct magenta endpoint is easy to see.
  • Ease of use simplifies training.
  • Unit-dosed packaging eliminates media preparation.
  • Quality Control (QC) procedure can be done in 15 minutes.


  • Under one minute hands-on time.
  • Detects total coliforms and E. coli simultaneously in 24 hours or less.
  • No confirmations needed.
  • No glassware cleaning or colony counting.


  • Identifies E. coli specifically, which eliminates unneeded public notification due to Klebsiella pneumoniae.
  • Suppresses up to 2 million heterotrophs per 100 mL.
  • Eliminates the subjective interpretation found in traditional methods.
  • Detects a single viable coliform or E. coli per sample.


  • 95% less equipment costs than membrane filtration (MF).
  • Minimizes evening and weekend work.
  • Up to 12-month shelf life at room temperature.


  • A Colisure Snap Pack can be used for presence/absence (P/A) or quantification testing.
  • Quanti-Tray provides counts to 200/100 mL without dilutions.
  • Quanti-Tray/2000 provides counts to 2,419/100 mL without dilutions.


Sample size format: 100 mL
Time to results: 24 hours with a 24-hour read window
Shelf life: Up to 12 months at 2-25°C
Read: Sample turns magenta when coliforms are present and fluoresces to indicate the presence of E. coli
Uses: Presence/absence or quantification using IDEXX Quanti-Tray, Quanti-Tray/2000 or multiple tube Most Probable Number (MPN) testing

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