CVC 10" High Vacuum Diffusion Pump, 4,000 l/s, 3-Phase, 220/240V, 16"OD ASA Flange with Foreline 7-1/2" ASA 300 Flange. 30" tall, approximately 150 lbs. This pump was refurbished by Schrader Scientific. The Jet Stack is clean & has minimal burn marks that do not affect functionality. The Cooling Coil is clear & has no dents. The Heater Wires are in tact with no cracks or breaks. It is in great condition!