This 14-in-1 spa water test strip bottle contains 50 pieces to detect 14 vital water indicators at once, including pH, total alkalinity, hardness, residual chlorine, bromine, nitrate, nitrite, sulfite, fluoride and heavy metals like lead, copper, iron, mercury and chromium, meeting full testing demands for spas, hot tubs, swimming pools, drinking well water and aquariums.

Simply dip one strip into water for 2 seconds, wait 60 seconds and match colors against the printed color chart on the sealed bottle to get instant results without extra tools or calibration liquid. Made of high-quality reagent paper with distinct color blocks for stable visual readings.

The tight moisture-proof plastic bottle blocks light and dampness to extend shelf life up to 2 years. Lightweight, low-cost and easy to carry for daily routine inspection, it is an essential water testing supply for home spa owners, pool managers and families.