Professional-strength liquid drain opener designed to clean the most clogged drains. Can be used on a regular basis to keep drains free-flowing and clean. Removes all organic obstructions such as hair, paper, and food particles. Use each month to save time, work, and money. For industrial use only! Do not use in aluminum vessels. Heavier than water, it penetrates directly to the clog and gets to work. Breaks up grease clinging to sidewalls of pipes. Will not harm most iron, ABS, CPVC, PVC, or clay pipes.