Hach Phenol Red Sol, 4oz Pentek Filter 1" Double Supports optimal water flow by

Supports optimal water flow by maintaining proper alignment and fit in mineral tank systems

Durability that Speaks Volumes: Constructed with high-quality

and ECF cartridges on schedule so the membrane and pump stay protected from chlorine and particulate

Genuine Fleck modified micro switch

In very high concentrations

Hach Phenol Red Sol, 4oz Pentek Filter 1" Double Supports optimal water flow byPhenol 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