In 24 hours, Hach’s m-ColiBlue24® Broth gives you simultaneous results for total coliforms and E. coli. Hach’s ready-to-use media eliminates measuring, mixing, and autoclaving steps necessary to prepare dehydrated media. Glass ampules (26084-20), plastic ampules (260845-00), 100mL bottles (26084-42) of m-ColiBlue24® and agar plates (28052-15), afford maximum shelf life and ease of use for pre-measured and prepared media. Enumerate total coliforms and E. coli on one petri dish. Differentiate colonies easily – red and blue indicate total coliforms and blue specifies E. coli. Get optimal recovery of stressed and injured organisms. No other pad is compatible with the product and the use of any pad other than those recommended below may result in unreliable, inaccurate data. m-ColiBlue24 should only be used with pads manufactured by the following companies/brands: Pall Corporation (e.g., Sterile Petri Dishes with Absorbant Pads), Private Label/OEM products manufactured by Pall, Gelman, Sartorius (cellulose and glass fiber pads), Sartorius BioSart products with the integrated Petri dish.