SUPERPUMP is a one-way valve that can be used as a pump to transfer most liquids WITHOUT ENERGY, QUICKLY, SAFELY and without SPILLAGE. Shake the tube vigorously up/down until liquid rises in the tube, without lifting it out of liquid. Continue pumping until liquid in tube passes balance level (L). Now stop pumping-action. Liquid will flow automaticly! Use for transferring DIESEL PETROL HEATING OILS KEROSINE THINNERS SOLVENTS ALCOHOLS CLEANING AGENTS WATER SALT WATER FERTILIZERS INSECTICIDES   Capacity UP10 - 1/2" inch - 10 liters in one minute - Tube size inner diameter 1/2" inch. UP12 - 3/4" inch - 30 liters in one minute - Tube size inner diameter 3/4" inch.