The US Water Systems Hardness, Iron, and pH Professional Field Analysis Test Kit is a compact 3-parameter water testing solution built for water treatment technicians, well water professionals, and knowledgeable homeowners. Accurately measures the three fundamental parameters that drive treatment decisions: hardness (0 to >100 GPG), iron (0-10 ppm), and pH (0-14). Small enough to fit in a glove box and capable of approximately 50 tests per reagent load, this kit is a dependable field companion for system design, performance verification, and routine water quality checks. Provides the same core testing capability as the Hach HA-62A at a significantly lower price. Replacement reagents available separately for extended kit life. Kit includes: hardness reagents #1, #2, and #3 (0.5 oz each), hardness test bottle, hardness measuring tube, iron reagent foil packs (5ml, 50 pack), and pH wide range indicator (0.5 oz).