20ml "POL20CH2"

Discover the PoolLab Liquid Reagents Calcium Hardness Reagent, conveniently offered in 20 ml size. This advanced reagent is expertly designed for precise calcium hardness measurement using photometers. Perfect for analyzing pool and spa water, the reagent ensures accurate and reliable results with every test. Ideal for professional use, this kit equips you with the essential tools needed to efficiently maintain optimal water quality.