• 3-in-1 Pool Test Kit: includes tests for total alkalinity, free chlorine, bromine, and pH. • Contains 150 test strips, ideal for pool, hot tub, and spa. • Easy and quick test: dip in water, hold horizontally, and compare with the color chart. • High precision strips: high-quality fiber paper and no-bleed pads. • Tips for accurate results: avoid wet fingers, read under natural light, store in a cool, dry place.