The Worlds’ Best Cryptosporidium and Giardia Reagents

Welcome To BTF

Manufacturer and supplier of the world’s most precise quality controls for Cryptosporidium and Giardia testing, helping to deliver safe drinking water.

US Environmental Protection Agency (USEPA), UK Drinking Water Inspectorate (UKDWI), and Japanese Water Works Association (JWWA) approved.

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The Latest News

EasyStain – Suitable for PCR analysis

See the updated EasyStain Instructions for use

Di Giovanni, G. D., R. M. Hoffman, and G. D. Sturbaum. 2010. Cryptosporidium Genotyping method for Regulatory Microscope Slides, Project 4099 Report. Denver, CO: Water Research Foundation. 

EasyStain – Now with ready to use DAPI


Ready to use liquid
No need to dilute, weigh or pipette
Dropper bottle
Stable in the fridge


Benefits to customers

Improved consistency of DAPI stain
More consistent results between analysts
Clearer results (more definition of nuclei)
Ease of use, all components in one kit
Time saving


EasyStain Blue for those customers who like Evans blue plus the benefits of EasyStain


FITC labelled anti-Cryptospridium and Giardia monoclonal antibodies
NO fixing buffer
Evans blue
Mounting Medium
Positive control reagent containing inactivated Cryptosporidium and Giardia

Use PBS for wash buffer
Compatible for use with PCR analysis
Evans blue – reddish background
Highly Specific
The only IgG1 antibody stain for both Cryptosporidium and Giardia.
No staining of algae, bacteria, yeast and mineral particles.
Short incubation time: 15 mins
Room Temperature incubation
Incubation can be done on the bench.


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