Accurate, fast water testing for pools, spas, aquariums and drinking water Key benefits Reliable multi-parameter results: measures total sanitizer, pH, alkalinity, hardness and cyanuric acid so you can detect issues before they become problems. Fast, actionable readings: color changes appear in 0–1 minute and match the included colorimetric chart for immediate interpretation — no extra equipment or lab tests required. Portable and ready for outdoor use: compact test strips with airtight packaging let you test on-site at the pool, spa, aquarium or wherever you need to check water quality. Long-term protection and durability: packed in a dry, airtight barrel and an airtight bag; high-quality materials prevent moisture damage so strips stay usable over time. What makes this product practical Simple colorimetric method gives a visual result that anyone can read — no technical training needed. All-in-one testing of sanitizer, pH, alkalinity, hardness and cyanuric acid eliminates the need for multiple kits. Compact, sealed packaging supports transport, storage, and outdoor sampling without degrading strip performance. Compatibility and materials Designed for use with swimming pools, hot tubs/spas, aquariums and drinking water sources. Constructed from durable strip material and protected by a dry airtight barrel plus an outer airtight bag to maintain strip integrity and reliability. Typical use scenarios Routine pool maintenance: quick pre-swim checks to confirm sanitizer and pH are in the safe range. Spa and hot tub care: fast alkalinity and cyanuric acid checks before guest use to avoid skin or equipment issues. Aquarium and drinking water checks: verify hardness and pH for sensitive aquatic life or when evaluating a new water source. How to use Dip a strip into the sample, remove, and compare the colors to the provided chart within 0–1 minute. No reagents or extra tools needed. This test strip set provides a compact, durable and easy-to-read solution for regular water quality monitoring across a range of applications.