Valterra Blue Devil 2 Phenol Red 5-Way B7514 is a 32 oz high-precision testing solution designed to accurately measure pH levels in pool and spa water. This phenol red-based reagent provides fast and reliable results, helping maintain balanced water chemistry for optimal swimmer comfort and equipment protection. Compatible with most standard test kits, it ensures easy and effective monitoring of pH levels to prevent corrosion, scaling, and chemical inefficiencies. Ideal for residential and commercial pool maintenance, the Blue Devil 2 Phenol Red 5-Way solution is an essential tool for ensuring a safe, clean, and well-balanced swimming environment.