The Unit Dose Vial Total Hardness Reagent is designed to measure total hardness in pool and spa water. These vials provide quick results and accurate readings, simplifying the process for maintaining proper water chemistry. Their precise formulation ensures that users can easily assess water quality and make informed adjustments as needed, contributing to a cleaner and healthier swimming environment. Ideal for both professionals and DIY pool owners, these vials make hardness testing straightforward and efficient. Each case contains 100 unit dose vials, ensuring a sufficient supply for regular testing. Compatible with visual testing methods, these vials are a reliable tool for monitoring hardness levels.