TruePower 40-4863 6' Shaker Siphon Pumping Tube/Hose, 2 Piece Set (Shake It and Siphon, 3.5GPM) 6' tube with ball/spring 1-way valve inside a solid copper fitting Just insert tube in liquid and shake it up and down to start the siphon flowing Transfers up to 3.5 gallons per minute Kink-free clear tubing for Water, Fuels, Insecticides, Paints, Solvents and Oil Tube OD = 3/4"