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Three-parameter testing: Tests Total Hardness
reducing water loss and maintenance
Filter-safe performance: Formulated to avoid clogging or overloading your pool filters
Broad compatibility: works with common 2/3 port configurations and typical repair scenarios for DIY or pro jobs
AquaChek High Range Chlorine Test Strips stain tester Three-parameter testing: Tests Total HardnessAquaChek High Range Chlorine Test Strips give pool owners an easy and effective way to measure the amount of free chlorine in their pool, which keeps your pool protected against bacteria and other organic threats. Free chlorine also can cause skin and eye irritation for swimmers if too high, so you should keep it in the 1 3 ppm range. These strips give you accurate results in about 15 seconds, making any adjustments easy. Best of all, High Range
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