Profile: FiberCell Systems, Inc. provides hollow fiber cell culture systems that allow researchers and biotechnology companies to produce quantities of cells and cell products. We offer small, medium, large and X-large cartridges. Our FiberCellTM DuetTM pump system is designed to support up to two FiberCellTM hollow fiber cell culture cartridges of either the medium (2100cm2) or large (1.2m2) size using independent medium reservoirs and flow rate control. Our reservoir cap assembly includes one machined medical grade polysulfone cap with molded-in silicone plug, two delivery tubes manufactured from 316L electropolished stainless steel and one .062 inch thick white silicone gasket to seal the bottle firmly against the cap for leak proof operation.