Leisure Time Test Test Strips Item # LST-47 Description: There are numerous factors can affect the bromine, chlorine, alkalinity, calcium hardness and pH levels in your spa. These 5-Way Test Strips will accurately measure these levels and enable you to determine how to correct and balance your water. Contains 50 5 way test strips Tests For: Bromine Chlorine PH Alkalinity Hardness Features:. Ideal for use in spas, hot tubs and swimming pools. Fast and simple Accurate These test strips work with chlorine as well as ozone sanitizers Benefits of this product: Just dip strip in water one time. Compare test results to chart on back of bottle. Patented PopTop protects strips from moisture and UV light. About Leisure Time Spa Products: For more than 25 years, Leisure Time™ has been the premier name in spa water care. You can depend on the quality of these spa care products for the up keep and water maintenance of your spa.