Midipreps require a vacuum manifold and minipreps may use it if you so choose. It uses vacuum to draw fluid through a spin column. Our labs manifold was in poor shape, the hose was attached with a quarter inch mass of parafilm and the opposite end from the hose leaked. A new 24 tube vacuum manifold from QIAGEN costs $270, the following kit cost 15.21 and holds 36 tubes.
Parts (not counting extras)
