A few jiggles of this fuel syphon soon has fluid flowing. Can be used as a syphon feed or fluids can be lifted to a height controlled by the length of the hose by continuous movement pump. Uses 19mm hose.FeaturesAllows pumping without electricity or suctionUsed for quick transfer of fluidsPrevents inhalation of vapoursSpecificationsDiameter: 19 mm (3/4″)Capacity: 30L/minLength: 200 cmTalamex product number:16126001