Low Total Chlorine promises to make on-site and field testing quicker and easier than current methods available. Since there are no powders or tablets to mix, no technical training is required, no hazardous chemicals are used, and results are achieved in less than 1 minute, the Ultra Low Total Chlorine test strip promises to revolutionize water quality testing. At Self Health Resource Center, we're always searching for new ways to serve you, the customer, with the best possible products and solutions. We select and offer only those products that meet the rigorous standards imposed by Dr. Clark’s published protocols.