... Granular and Tablets of different size 3.disinfection 1,Trichloroisocyanuric Acid --TCCA 2,Specs:granular, 20g tablet, 200g tablet ... , stick. 3,Pool Chemical, Water Treatment Chemical TRICHLOROISOCYANURIC ACID--TCCA (Pool Chemical, Water Treatment Chemical)( Powder, Granular, ... 2.9 Usage:Used as biocide in swimming pool, industrial cycling water, dringking water; Sterilzing agent in hospital, ...