We offer microbicides. “to inhibit control green and other algae bacteria fungi is the main purpose of using olklin –ac-4.” these troublesome microbiological growths can cause number of problems such as plugging of pipelines and equipments, reduced cooling capacity, corro¬sion etc. These problems can be nullified by our product olklin-ac-4, which is broad-spectrum algaecide biocide, effective over a broad ph range and can be used along with other water treatment chemicals.