Do your laboratory experiments last long and depend on noisy or unreliable equipment? If so, you'll love the ease and simplicity of Filtr8. Filtr8 Vacuum Stick is a high volume manual pump perfectly suited for hobbyists, students and schools. Simply attach the silicone tube to your vacuum filtration flask and start pumping. A built-in one-way valve will keep the pressure in the tube where it can work and will not bleed through the pump. The Filtr8 vacuum bar replaces cumbersome and unreliable hand pumps to provide a constant vacuum source to speed up the filtration process and its experiments. The pump produces a maximum vacuum in the range of 25-28 inches of mercury. This item is only the pump and the tube. Filtration flasks and funnels are displayed for context and demonstration only. Not to be used with caustic or flammable chemicals. Mainly intended for dry and aqueous vapours.