About This Complete test kit for maintaining balanced pool water chemistry; tests for Chlorine, Bromine, pH, Acid Demand, and Total Alkalinity This pool water test kit is a great work-horse that features clear-view round test block with integrated color chips for accurate color matching Includes 1 ounce solutions of # 1-3 and 1/2 ounce solutions of # 4-5 (# 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 2 or 3-Way Test Kits (# 1 solution is sealed to comply with transportation regulations, no other solutions require sealed caps Easy to use, this water testing kit helps keep pool, hot tub and spa water sparkling clean and healthy Overview Brand : Poolmaster Ph Range : 0-14 Recommended Uses For Product : Swimming Pool, Spa, Water Test Unit Count : 1.0 Count Manufacturer : Poolmaster