Hach Phenol Red Sol, 4oz

Phenol Red is one of the most widely used pH indicators in water testing, and this Hach Phenol Red Solution comes in a convenient 4 oz bottle sized for ongoing, regular use. As the indicator reacts with a water sample, it shifts color across the range that is most relevant to drinking water and pool chemistry, giving operators a fast, clear visual read on whether the water is trending acidic or alkaline. That immediate feedback makes it a valued tool for routine monitoring and for troubleshooting water that just does not seem right.

Reliable pH measurement matters throughout the world of water treatment, far more than many homeowners realize. The pH of water affects the effectiveness of chlorine and other disinfectants, influences the solubility of metals such as iron and copper, impacts the performance and longevity of softeners and filters, and ultimately affects the taste, safety, and comfort of the water people use every day. Water that is too acidic can corrode plumbing and fixtures and leach metals, while water that is too alkaline can contribute to scaling and reduced disinfection efficiency. Using a quality, brand-matched reagent helps ensure that the pH readings driving these decisions are dependable.

• Phenol Red indicator solution for pH determination in water
• Practical 4 oz bottle suited to repeated, ongoing testing
• Color change keyed to the common drinking-water and pool pH range
• Genuine Hach reagent for proper method compatibility
• Net weight approximately 0.29 lbs
• Useful for both routine monitoring and troubleshooting

This solution is well suited to technicians, well owners, and facility operators who routinely verify pH as part of a broader water quality program. As with all testing reagents, store the bottle according to the label guidance, keep an eye on expiration dating since reagent chemistry can degrade over time, and follow the test method instructions closely for the most accurate results. Keeping a fresh bottle of Phenol Red in your testing kit means you are always ready to confirm pH on demand, whether you are checking a customer's water in the field or monitoring a system at home. Pairing pH results with hardness and iron data gives a fuller picture of a supply, since pH so often explains why a particular contaminant is staining fixtures or why a treatment system is behaving unexpectedly, making this reagent a valuable part of a complete diagnostic toolkit.