Vivreau Water Test Strips Chloride- 1054400 (10 in each case)The Vivreau Water Test Strips kit allows you to test certain perameters of water to help determine which filter you should use, and what the capacity of the filter cartridge will be. The test kit includes one total iron test, one free chlorine test, one total chlorine test, one pH & total alkalinity test, and one chloride test. Each Strip costs $15. 73 Whats in the kit? One Total Iron Test One Free Chlorine Test One Total Chlorine Test One pH & Total