AquaDoc 7-in-1 Spa & Hot Tub Test Strips - 200 Pool Test Strips for pH, Chlorine, Hardness, Bromine, Cyanuric Acid, AlkalinityBrand: MAV AquaDoc Features: 200ct AquaDoc Pool Testing Strips test the 7 most important parameters in balancing your water: Total Chlorine, Total Hardness, Free Chlorine, Cyanuric Acid, Total Alkalinity, Bromine, and pH Levels. These refill chlorine test strips work seamlessly with our Digital Pool Test Kit or can be used manually for traditional testing, ensuring accurate readings for both inground and above ground pool water. Our spa test strips