Palintest Contour Comparator Kit Zinc 0 - 4 mg/LSimple to use, and with a wide range of kit options, the Contour Comparator offers an excellent solution to visual testing requirements. Compact size with grip feature for ease of handling. Range: 0 4 mg L Zn Kit includes: Contour Comparator, Contour disk with instructions, 3 cuvettes, cuvette brush, crush stir rod, reagents for 30 tests, supplied in a hard case Sku: CKH1148 To be Discontinued.