Specifications: ‣ Product Type: Aquarium Water Test Kit ‣ Volume: 15ml ‣ Use Case: Measures carbonate hardness (KH) in freshwater and marine aquariums ‣ Active Ingredient: Titration reagent for KH measurement Key Features: ‣ Accurate KH Measurement: Precisely determines carbonate hardness levels in aquarium water ‣ Easy to Use: Simple titration test for reliable results ‣ Essential for Aquarium Health: Helps maintain stable pH levels by monitoring water hardness