AquaChek Silver 7-Way Test Strips 100ct 551236 - 5 Pack

AquaChek's 7 Way Test Strips give pool owners an easy, effective way to test the most important factors of system health and safety: total hardness, total chlorine, total bromine, free chlorine, pH level, total alkalinity, and cyanuric acid. Once inserted into water, 7 Way Test Strips produce a quick, accurate reading of these critical levels, helping you to identify and then correct problems in your pool.