100 Count Smart Test 4/7- Way Swimming Pool Spa Water Chemistry Test Strips Easy and Accurate Test Free Chlorine, Nitrate,Hardness,Nitrite, pH,Total Alkalinity and Chlorine (7 in 1, Black)

Key features

• Checks for 7 Key Elements: Multi-Purpose 7 in 1 Pool and SPA Test Strips for Swimming Pools check for free available chlorine, nitrate,nitrite, pH, hardness, total chlorine and alkalinity.
• Easy-to-use Strips: These convenient test strips are a quick and easy way to find out what your pool needs to keep it looking clean and beautiful. Just Dip the strip in the water for 2 seconds and then remove it. Hold the strip horizontally for 60 seconds, no need to shake it, you will get accurate results without any contamination between test pads.
• Easy to Read: Compare your test strip against the color chart on the bottle, read results according to color change. Check the ideal range marked on the chart to adjust your pool or spa.
• Perform Up to 100 Tests: With enough test strips for up to 100 tests, it’s easy to test and balance your swimming pool during the summer season.
• Keep You Spa Water Clean and Healthy: Test the water before and after each use! If used in a pool we recommend testing at two ends or sides of the pool a minimum of twice a week. It’s also a good idea to write down your results each time you test. NOTE: We ensure that our 7 in 1 Swimming Pool and SPA Test Strips will meet your expectations and offer returns no questions asked.