Tetra 7in1 Aquarium Water Testing Kit

Measures seven important water values - pH, general and carbonate hardness (GH + KH), nitrite (NO2-), nitrate (NO3-), chlorine (Cl2) and carbon dioxide (CO2)

• An early warning system - To detect poor water quality and ensure aquarium water is safe and healthy
• One-step water test - Easy to use with full information and tips on possible solutions