Rorax Rohrfrei Bio-Power-Gel environmentally friendly removes clogs such as hair, grease, and unpleasant odors in drain pipes. The specially developed Bio-Safe formula even dissolves hair and does not harm drain pipes or seals. The Bio-Safe formula is safe for pipes as it is free from aggressive chlorine chemicals, is harmless and quickly biodegradable for wastewater, and is reliable in preventing and eliminating unpleasant odors in the drain.