Our pipe dredge agent contains isopropyl alcohol, ethylenediamine tetraacetic acid disodium, sodium bicarbonate. It prevents the growth of bacteria, keeps the pipes clean, and makes your health worry-free. Efficiently remove pipes without leaving any residue, leaving pipes as clean as new. Its use method is very simple: 1. Pour the appropriate amount of this product into the tube; 2. Pour appropriate amount of water and mix with this product; 3. After 30 minutes, flush the pipe with plenty of water. Pipe dredging agent fragrance lasting, after use will emit a new smell, comfortable and pleasant.