Product Description A brilliant addition to any Nilfisk Pressure Washer tool kit that can save you time an money - easily cleans away any movable blockage from the inside of drains and tubes.This is an Extra Choice product. Please see the Extra Choice information within customer services for more details. Used to unblock drains and gulleys wwth an uderground working length of 13m. Once connected to the gun on your Nilfisk pressure washer, feed the other end of the high pressure hose cleaner into the drain or pipe to be unblocked. Then switch on the electrical power and water. Activate the trigger and the high pressure water will be forced forward from the end of the hose hammering into the obstruction. At the same time reverse pointing high pressure jets will hold the forward facing jet against the obstruction and flush the removed debris away.