This Hach 2297255 DPD Compound is a must-have for any pool owner who wants to keep their pool water clean and healthy. The compound is specially designed to work with free and total chlorine analyzers, making it easy to detect and treat any issues related to chlorine levels in your pool. With its high-quality formulation and reliable performance, this testing kit is perfect for both residential and commercial pools. It is manufactured by Hach, a trusted brand in the pool industry, and is designed to meet the highest standards of accuracy and durability. So, whether you're a professional pool manager or a DIY enthusiast, this Hach 2297255 DPD Compound is a great addition to your pool maintenance kit.