Harpic Flush Matic In-Cistern Toilet Cleaner Block (Marine) is an automatic toilet cleaning solution specially designed to keep toilet bowls fresh, clean, and hygienic with every flush. Manufactured by Harpic India, it releases cleaning agents continuously inside the flush tank to help reduce stains, control odors, and maintain toilet freshness. Infused with a refreshing Marine fragrance, it leaves toilets smelling clean and fresh after every flush while helping maintain hygienic toilet conditions.