The heart of our Aqua-Lab Chemical Dispensing Systems, Chem-Flex Injectors are one of the most chemical resistant injectors on the market. Our injectors are the most corrosion resistant and longest lasting injectors on the market. Injectors are color-coded by flow size to optimize chemical delivery. Along with the Chem-Flex, comes the VersaDial chemical control device. With 32 unique settings, the dial is able to work with the lowest concentrates on the market. Together these provide a consistency from draw to draw, and from device to device. The correct amount of chemistry is delivered, every time.