CosySpa 5IN1 Testing Strips [50 PK] | CHLORINE DIP TESTS – Hot Tub PH Tester
Simple to use & caneasily compared to the provided colour chart so you know exactly which chemicals to add to your hot tub water. Alkalinity: Between 0-180ppm. Bromine: Between 0-20ppm. Chlorine: Between 0-10ppm.