Easy Colony Counting in a Bag






 GEL EC CFU Kit – Easier Than Membrane Filtration Tests


Now you can obtain Colony Forming Units (CFU) test results for E. coli without complicated and cumbersome membrane filtration equipment.

The Aquagenx® GEL EC CFU Kit is a new bag test for on-site testing in the field. Simply count blue E. coli colonies that appear in our GEL bag.

GEL Kits eliminate the need for laboratories, electricity, expensive equipment, a cold chain and complex testing methods. They enable ambient temperature incubation at 25ºC and above.


GEL EC CFU Kit Video

Dissolve GEL Powder Video

How to Use GEL EC CFU Kit


Collect 100 mL sample Add Aquagenx
E. coli  growth medium
Add GEL powder to GEL bag Pour sample from Thio-Bag into GEL bag
Dissolve and spread GEL mixture Seal GEL bag shut Incubate at ambient temperature or in incubator Count blue EC colonies in ambient light to score test results

Useful Resources


Product Documents


Images of Test Results


Surface and Recreational Waters

GEL EC Kit Components

EC Growth Medium

Aquagenx E. coli powder growth medium for GEL test

GEL Powder

Create gelatinous environment where E. coli colonies can grow

Whirl-Pak Thio-Bag

100 mL Whirl-Pak Thio-Bag for sample collection 


Aquagenx GEL bag included with CFU Kits