Check the listing for details. UNIT Instruments UFC-1200A Mass Flow Controller 500 SCCM CHF3 Working Spare. Condition: Used. Listed at 255.19 USD. UNIT Instruments UFC-1200A Mass Flow Controller 500 SCCM CHF3 Working Spare Inventory # 18487 Part No: UFC-1200A Range/Gas: 500 SCCM, CHF3 Interface: Card-Edge Connector: 4VCR (1/4") May Require Calibration This UNIT Instruments UFC-1200A Mass Flow Controller 500 SCCM CHF3 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" @ 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