Four-In-One Test Kit
Free and Combined Chlorine, pH, Acid Demand and Total Alkalinity - The most complete kit with test block, five color-keyed indicator solutions, instructions and storage case. For pools only.

Deluxe 2-Way Test Kit (Discontinued)
Chlorine/Bromine/pH - Deluxe 2 vial design with color-keyed indicator solutions. Complete with instructions and storage case. For pools and spas.