AquaChek Yellow 4-in-1 Chlorine Test Strips (50 strips)

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Tests for: Free Chlorine, pH, Total Alkalinity, Stabilizer (Cyanuric Acid) AquaChek Chlorine 4-in-1 is designed for customers who use chlorine in their pool or spa: the go-to product for testing the most critical parameters in your pool. You'll find the easy-to-use flip-top cap conveniently dispenses one strip at a time. AquaChek Chlorine 4-in-1 is a great choice when getting started with pool testing.

-pH: 6.2-8.4

-Free Chlorine: 0-10 ppm

-Total Alkalinity: 0-240 ppm

-Stabilizer (Cyanuric Acid): 0-300 ppm