Brand new, sealed, in box:

Brooks Instrument MFC

Model GF81

Part # GF081XXXC-0007400L-V1VSD5-XXXXXAX-00C

Devicenet

300 slm

1/2" VCR connections

Full spec: http://www.brooksinstrument.com/products/mass-flow-controllers/thermal-metal-sealed/gf80-series

Fast, safe & reasonably priced shipping.