Aquachek Select 7 in 1 Test Kit

Tests for Total Hardness, Total Chlorine, Total Bromine, Free Chlorine, pH, Total Alkalinity and Cyanuric Acid (Stabilizer).
Comes with 50 test strips; refills available

Just dip an AquaChek Select test strip in your pool or spa water for one second and remove it immediately. You get results in seconds! It's a simple, cost-effective way to ensure that the water is safe.