The CHEMetrics® HR CHEMets® Sulfide Test Kit (K-9520D) provides a reliable high-range method for measuring sulfide in water using the Methylene Blue method. Designed to replace the discontinued VACUettes product line, this kit is ideal for high-concentration sulfide testing. The kit comes complete in a durable plastic case and contains everything needed to perform 30 tests (except distilled water), delivering fast, accurate results.