Check the listing for details. STEC SEC-4500M Mass Flow Controller MFC SEC-4500 10 LM O2 OEM Refurbished. Condition: Seller refurbished. Listed at 609.20 USD. STEC SEC-4500M Mass Flow Controller MFC SEC-4500 10 LM O2 OEM Refurbished Inventory # 19724 Part No: SEC-4500M Model No: SEC-4500 Range/Gas: 10 LM, O2 Interface: 9-Pin D Connector: VCR4 (1/4") CE Marked OEM Refurbished Made in Japan This STEC SEC-4500M Mass Flow Controller MFC SEC-4500 10 LM O2 OEM is refurbished surplus. Includes factory certificate of conformance and calibration. The physical condition is good, but there may be signs of previous use and handling. Sale Details Item Condition: Refurbished, 90 Day Warranty Estimated Packed Shipping Dimensions: L x W x H = 10"x10"x10" @ 5 lbs. 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. Items are sold with a 90-Day Satisfaction Guarantee Lister 31