Maintain perfect water balance with the ProAqua pH Test Reagent. This 20ml bottle of phenol red solution is designed for use in pool and spa water testing kits, providing accurate measurement of pH levels—an essential part of maintaining clean, safe, and comfortable water.
Use it as a replacement reagent for your existing ProAqua or compatible test kits. The phenol red indicator reacts to the hydrogen ion concentration in water, offering a clear visual reading of your pool or spa's pH level. A reliable choice for routine water testing and long-term pool health.
