511242A Test Strips AquaChek Yellow 4-in-1 Free Chlorine 50 ct

Ideal for customers who use chlorine as a sanitizer in their pool or spa. Includes a test for Cyanuric Acid (stabilizer), which is especially important for outdoor pools and spas.
Tests for:

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