IDEXX ProCyte Dx chemical set contains 3 bottles of chemicals (analyzer chemicals, red blood cell diluent, and hemoglobin chemicals), a system diluent, and a waste container. The chemical set connects to the device via quick connect. Inside the chemical set, the chemical rack is color-coded and numbered to indicate the location of each chemical, the system diluent, and the waste container. Important: To ensure customer safety and optimal system performance, IDEXX recommends placing all chemical sets next to or below the device. Chemical sets should not be placed above the device.