The manual pumping of the cylindrical plunger allows air to enter and liquid extraction by positive pressure. Materials in contact with liquid; PP, PE and FKM. For liquids with viscosity up to 1500cps at 20ºC. 64mm diameter thread (BSI). Suitable for weak acid, base and hydrocarbon transfers. Pumping capacity: 8L/min. Immersion tube of 100cm. Adaptors available for different containers and standard canisters.