Water testing kits for alkalinity, pH, hardness, cyanuric acid, chlorine, free chlorine, nitrate, iron, chromium, lead, copper, mercury, fluoride, and carbonate. These 16 testing parameters are key factors that influence water quality and safety for filtered water, well water, tap water, drinking water, or other water sources. Designed for accuracy and reliability, this product uses advanced technology for effective water quality monitoring. To prevent water contamination, a dropper and tube are included for sample collection, eliminating the need to place the test strip directly into the water source. The included tube also allows for easy testing when water depth is insufficient, enabling all 16 parameters to be tested simultaneously. Each kit includes 50 test strips, providing up to 800 individual tests (16 parameters per strip). This offers a cost-effective solution for comprehensive water analysis without the need for multiple lab tests. Material: Paper Color: As shown Package Contents: 1 set x Water Test Kits Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.