Millipore FC-2900MEP Mass Flow Controller MFC 1 SLPM He Tylan 2900 Refurbished. Model No: Tylan 2900 Series. Range/Gas: 1 SLPM, He. Includes Calibration Data Sheet. This Millipore FC-2900MEP Mass Flow Controller MFC is refurbished surplus. Only items pictured are included: If a part is not pictured, or mentioned above, then it is not included in the sale. Pictured test equipment is not included or available for sale. For items with multiple quantities: The pictured item is not necessarily the one that will be sent. Serial numbers or country of manufacture may vary.