Poolmaster 22270 5-Way Swimming Pool or Spa Water Chemistry Test Kit with Case, Premier CollectionBrand: Poolmaster Color: Neutral Features: For maintaining proper water chemistry; Tests for Chlorine, Bromine, pH, Acid Demand, and Total Alkalinity Includes clear view round test block with integrated color chips for accurate color matching Includes 1oz. solutions of #1 #3 and 1 2oz. solutions of #4 #5; (Note: #2 Phenol Red is not the same as Phenol Red DO NOT interchange) #2 Phenol Red is for use with 5 Way Test Kits and Phenol Red is for use with