Varian 500 MHz Microflow probe (s/n P002289) 1H{13C} PFG Indirect; Microflow LC-NMR Probe, 500Mhz NB. (C13 decouple) Please contact us for complete Varian NMR probe details. (Varian 500 Mhz probe/Varian 500 Mhz nmr probe)