Plumb-Away(R) is the One-Second Drain Opener!! Open any kind of drain and clog. Plumb-Away is more economical, faster, easier and safer to use than the standard liquid, foam and crystals. Plumb-Away contains no harsh chemicals--no acids, no lyes, no CFCs, and will not harm sound metal or plastic pipes. Environmentally-friendly, and scientifically based, Plumb-Away leaves your drain free-running and lemon-fresh!