Aquachek 4 In 1 Test Strips-Yellow

Designed for customers who use Chlorine in their pool or spa, Yellow 4-in-1 is the go-to product for testing the most critical parameters to keep a clean and balanced pool and protect equipment and surfaces.

• pH: 6.2-8.4
• Free Chlorine: 0-10 ppm
• Total Alkalinity: 0-240 ppm
• Stabilizer (Cyanuric Acid): 0-300 ppm

Blister card. Free Chlorine, pH, Total Alkalinity and Cyanuric Acid.