AquaTru's color comparator system has been carefully designed to reflect the needs of the concerned aquarist. The top is flared to make adding reagents easier, the wide base increases stability and a special sliding window helps make color comparisons more accurate. The color strip consists of translucent colors applied to a durable plastic, rather than a printed paper card. The translucent color strip allows light to pass through, providing a much more accurate match when comparing the cube's colors to those produced by the reagents. Reflected colors, such as those produced on a printed comparator do not match well when compared with the translucent colors in a test cube.

The quality of tap water varies widely and aquarium systems are becoming increasingly sophisticated (and expensive). It is increasingly important to monitor water conditions carefully in the aquarium. It is equally important to select only top quality, reliable test equipment to monitor these conditions. It is beyond the scope of most aquarists to analyze the accuracy of a test kit. They must depend on the manufacturer to provide them with accurate, dependable test kits, and a staff available to answer questions and resolve problems. Kordon has taken pride in providing professional quality test kits and test kit consultation... for over 15 years.