Sterile, single use, polystyrene space saving vessels for large scale cell culture production. Reduces contamination risk. Out of box solution - no additional accessories required. Easy to use: Pour media directly into cell factory. Equilibrate by placing cell factory on side with small port. Turn 90? so the filling inlet is up. Medium will be separated with equal amounts in each chamber. Tilt the cell factory to a horizontal incubation position. Incubate following appropriate protocol. Loosen cap and empty directly into reservoir. Plate size (L x W): 33.5 x 20.5 cm.