Chlorine/algaecide/flocculant/pH stabilizer multitabs. Pool multitabs are used for pool maintenance. They disinfect the water with the help of chlorine, prevent the appearance of algae with the algaecide, and keep the water crystal clear and transparent thanks to the flocculant. Additionally, thanks to the stabilizer they contain, they release only the necessary amount of chemicals according to the needs of the water.