Hach AquaChek 7-Way Silver Test Strips for Swimming Pool & Spa (Exp 10/25 latest batch) 100 Strips - Fast Free Shipping

Hach 7-Way Pool & Spa Test Strips The easiest way to test your swimming pool or spa, with 7 tests in one strip! This comprehensive test strip saves you time and trips to the pool store by testing for free & total chlorine, bromine, pH, total alkalinity, CYA/stabilizer, and calcium hardness. It covers all the important tests needed to maintain your pool’s chemistry. Key Features • 7-In-1 Testing measures free & total chlorine, bromine, pH, total alkalinity, CYA/stabilizer, and calcium hardness • Fast Results provides accurate readings in just seconds • Easy to Use with a simple dip and read method • Reliable Accuracy trusted by pool and spa professionals • Versatile suitable for both residential and commercial pools and spas How to Test Your Pool 1. Take a test strip from the Hach 7-Way Tester bottle 2. Dip the strip straight down, 12 to 16 inches below the surface 3. Pull up to the surface and hold flat with color pads facing up 4. Do not let water drain down into the pads