Check the listing for details. McKesson Consult Instant Bluing Tablets 164-7875 - (100 Ct). Condition: New. Listed at 23.17 USD. Turns toilet water blue to prevent adulteration prior to specimen collectionTo use, place one tablet in the toilet bowl or tank100 tablets per bottle --> Shop About Us Contact Us Reviews and Ratings McKesson Consult Instant Bluing Tablets 164-7875 - (100 Ct) McKesson Consult | MFG #164-7875 Conduct accurate and fraud-proof urine sampling with McKesson Consult bluing dye tablets. These tablets work effectively wherever companies or facilities conduct drug and urine tests. These instant bluing tablets dye the water inside a toilet bowl to a deep shade of blue. This is to keep examinees from attempting possible fraud in urine sampling, such as if an examinee collects another person's urine from inside an unoccupied toilet bowl to use as a sample. Should an examinee attempt to adulterate his sample with dyed toilet water, the sample would have a noticeable blue tint. Simply place one of the blue dye tablets inside of a toilet bowl or water tank for fast results. The dye disappears once the toilet flushes, so monitoring examinees is highly encouraged if collection takes place in a room with multiple toilets. Turns toilet water blue to prevent adulteration prior to specimen collectionTo use, place one tablet in the toilet bowl or tank100 tablets per bottle Color Size Material --> Product Count: 1 Packaging Count: 100 Total Quantity: 100 Product Specifications McKesson Brand McKesson Consult Instant Bluing Tablets