Quickly and accurately monitor your chlorine-free pool with Insta-Test® Biguanide 6-Way Test Strips (25 Count) – a convenient and reliable solution for maintaining perfectly balanced water. Specifically formulated for biguanide-based systems like Baquacil®, these test strips give you fast, easy readings for all the essential parameters needed for safe, clean swimming. Each strip delivers precise results for Biguanide Sanitizer, Biguanide Shock (Hydrogen Peroxide), Total Alkalinity, pH, and Total Hardness. Simply dip, wait a few seconds, and compare to the included color chart – no need for liquid reagents or complicated equipment. Perfect for weekly testing or quick checks before a swim. Measures: Biguanide, Biguanide Shock (Peroxide), Alkalinity, pH, Total Hardness Designed for Baquacil® and other chlorine-free pool systems Fast, mess-free water testing in under 30 seconds Includes 25 test strips in a moisture-protected container Helps ensure a clean, balanced, and swimmer-friendly pool For pool owners using a biguanide system, Insta-Test® Biguanide Test Strips are a must-have tool to keep water sparkling, safe, and swim-ready all season long.