541604A Test Strips AquaChek Select 7in1THTCTBFCpHTACA50ct

Tests for 7 important parameters in pools & spas that use either chlorine or bromine as their sanitizer.

Tests for:

• Total Hardness: 0-1,000 ppm
• Total Chlorine: 0-10 ppm
• Total Bromine: 0-20 ppm
• Free Chlorine: 0-10 ppm
• pH: 6.2-8.4
• Total Alkalinity: 0-240 ppm
• Stabilizer (Cyanuric Acid): 0-300 ppm