Our 9-in-1 water test strips bottle includes 50 pieces to test nine vital water indicators at once: free chlorine, total chlorine, pH, total alkalinity, total hardness, cyanuric acid, nitrite, nitrate and bromine, fully meeting testing demands for pools, spas, aquariums and drinking water.

Just dip one strip into water for 2 seconds and wait 30-60 seconds, then match colors against the printed color chart on the moisture-proof bottle cap for instant results. Made of premium PET substrate, each pad delivers distinct color changes for stable visual readings.

Tight-sealed plastic bottle blocks moisture and sunlight to keep strips effective for 12 months. No extra tools or calibration needed, lightweight and cost-effective for daily routine inspection. It is an essential supply for pool owners, aquarium keepers and families to maintain balanced, safe water environment.