Kinetic Water Ram

The Kinetic Water Ram eliminates grease, hair and sediment from lines up to four inches in diameter.
Anyone can use it. You just pump it up. Insert it in the sink, toilet, tub or drain. Pull the trigger. And WHAM! A slug of compressed air creates a shock wave that strikes the clog at around 4,700 feet per second. The clog simply disintegrates. The particles are flushed away. Since the shock wave travels so fast, it bypasses vents and 98% of the force hits the clog head-on. There's no pressure buildup in the system, so pipes and joints aren't affected.