Keep your pool crystal-clear and safe all season long with the JNW 7-in-1 Pool Test Strips — the all-in-one water testing solution trusted by pool owners and hot tub enthusiasts alike. Each bottle contains 200 individual test strips, giving you months of reliable pool water testing without the hassle of expensive lab kits or complicated equipment. Testing is effortless: simply dip a strip into your pool or spa water for just 2 seconds, wait 30 seconds, and compare the vivid color indicators against the included reference chart. In under a minute, you'll have accurate readings for 7 critical water chemistry parameters — Free Chlorine, Total Chlorine, Bromine, pH, Total Alkalinity, Total Hardness, and Cyanuric Acid (CYA) — so you can make precise chemical adjustments with confidence. Designed for both residential and commercial use, these swimming pool test strips deliver highly precise, repeatable results to help maintain a healthy, balanced aquatic environment. For best results, test your pool or spa water at least twice per week. Store strips in a cool, dry place away from direct sunlight, seal the container tightly after each use, and use within 90 days of opening to preserve maximum accuracy. Your purchase also includes a FREE digital eBook packed with expert tips on pool water chemistry, chemical dosing guides, and best practices for maintaining crystal-clear water year-round. Whether you're managing a backyard swimming pool, above-ground pool, hot tub, or spa, JNW pool test strips deliver the fast, accurate results you need — every single time.