AquaChek Test Strips 511297 Maintain crystal-clear, balanced water with AquaChek Test Strips. Trusted for accurate and efficient pool and spa water testing, these strips make routine water care effortless and error-free. Key Features & Benefits Tests for four essentials: Free Chlorine, pH, Total Alkalinity, and Stabilizer (Cyanuric Acid) Delivers rapid, reliable digital or manual results in just 15 seconds Utilizes medical-grade technology for accuracy that rivals classic liquid tests Color-match chart for easy manual interpretation—no counting drops needed Includes 10 single-use strips in a moisture-proof bottle for extended freshness Works with AquaChek Connect app for treatment suggestions, record-keeping, and trend tracking Compatible with swimming pools and spas using chlorine sanitizers Specifications Brand: AquaChek pH Range: 6.2–8.4 Free Chlorine: 0–10 ppm Total Alkalinity: 0–240 ppm Stabilizer (Cyanuric Acid): 0–300 ppm Count per bottle: 10 strips Use: Swimming pool, spa