“16in1 Water Testing Kit for pH, Hardness, Fluoride & More 100 Test Strips”
Worldwide Water Testing Kit– Test tap, well, bottled, or rainwater. No More Guesswork – Clear color chart eliminates confusion—perfect for seniors.
Saltwater Pool Test Strips 0-8000 Ppm Salt Test Strips Kit for Sodium Chloride
Why do my results show 0 ppm but my salt system reads 3,500 ppm?. Other salts may give different results. Also check: pH 5–9, follow instructions. Salt level is too high (above 8000 ppm) – color goes off the chart.