Aquacheck Bromine 4 in 1 test stripsAquacheck Bromine 4 in 1 test strips 50 single use, disposable strips designed to help you quickly assess four essential water parameters in one simple test. Each strip reads total bromine, pH, total alkalinity, and calcium hardness, giving you a complete snapshot of your water chemistry in a single pass. Four readings, one strip With four critical measurements bundled into one disposable strip, you can check bromine levels alongside pH balance,