Flocculation testers are designed for a range of applications – such as testing the efficiency of flocculation or precipitation agents. Models AL30, AL40, AL50 are designed for a range of applications – such as testing the efficiency of flocculation or precipitation agents AL40 model comes with 4 stirring places and AL50 model with 6 stirring places are fitted with an illuminated back panel for glare-free observation of the samples and are suitable for laboratory use.