Drain Clean Stick is the super concentrated, drain cleaning and sanitation sticks that prevent clogs and bad odors. It is suitable to use in any drains in your home, just drop one stick per month.The clean stick breaks down and digests organic deposits and grease buildup and safe for plumbing and septic tanks. Perfect for kitchen, bathtub, and vanity. Apply monthly. 2 year supply. 24 drain sticks included. Additional Details ------------------------------ Product description: Drain Clean Stick is the super concentrated, drain cleaning and sanitation sticks that prevent clogs and bad odors. It is suitable to use in any drains in your home, just drop one stick per month.The clean stick breaks down and digests organic deposits and grease buildup and safe for plumbing and septic tanks. Perfect for kitchen, bathtub, and vanity. Apply monthly. 2 year supply. 24 drain sticks included.