Taylor Technologies K-2006C-8 2000 Service Complete Test Kit; Blended Indicator/FAS-DPD/Turbidimetric/EDTA Titration/Phenol Red Test Method
After comparing this one with the one our pool guy used I would buy his version (K2005). Different comparator in the 2005 kit allows you to test for both Cl and pH using both chambers at the same time. Also instructions are a bit different based on the content but overall does the same thing.