Check the listing for details. UNIT Instruments UFC-1660 Mass Flow Controller MFC 1 SLM CL2 Working Spare. Condition: Used. Listed at 255.19 USD. UNIT Instruments UFC-1660 Mass Flow Controller MFC 1 SLM CL2 Working Spare Inventory # 18474 Part No: UFC-1660 Model No: 1660 Range/Gas: 1 SLM, CL2 Interface: Card Edge Connector: 4VCR (1/4") May Require Calibration This UNIT Instruments UFC-1660 Mass Flow Controller MFC 1 SLM CL2 is used working surplus. The physical condition is good, but there are signs of previous use and handling. Sale Details Item Condition: Used Working, 90 Day Warranty Estimated Packed Shipping Dimensions: L x W x H = 10"x10"x10" @ 6 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