8 in 1 Pool and Spa Water Test Strips, 100 Test Strips for Total Hardness, Nitrate, Nitrite, Iron, Copper, Free Chlorine, Total Alkali, pH NPTERBL

General description This 8 in 1 Pool and Spa Water Test Strips kit includes 100 test strips designed for testing total hardness, nitrate, nitrite, iron, copper, free chlorine, total alkalinity, and pH levels. It is ideal for maintaining the cleanliness and safety of your pool, spa, or hot tub, with recommendations to test at least twice a week. Technical specifications Number of test strips: 100 Parameters tested: Total hardness, nitrate, nitrite, iron, copper, free chlorine, total alkalinity, pH Expiration date: 2 years from the date of manufacture Usage after opening: Within 90 days Usage Immerse all colored parts of the test strip into the water for 2 seconds. Lay the test strip flat and wait for 60 seconds. Compare the test strip with the color chart on the bottle within 30 seconds for accurate results. Keep wet fingers away from the strips and store in a cool, dry place.