Check the listing for details. 500029732R-CU / MASS FLOW CONTROLLER, CU,SIH4,STEC,200SCCM,MFC,UNI / STEC. Condition: Used. Listed at 512.13 USD. Your Source for Spares & Repairs WE BUY SURPLUS SEMICONDUCTOR PARTS. Please Contact Nicole Jackson at getsparesllc Sourcing Manager-eBay Manager ABOUT US: My company may be able to fulfill all the Part needs you may have. We are the largest supplier of New-old-stock, refurbished and used Semiconductor parts in the industry. Applied Materials, Canon, DNS, Ebara, Edwards, ENI, Gasonics, KLA-Tencor, LAM, Nikon, Novellus, Prometrix, SVG, TEL, Varian and more. Whether you need help finding parts or components for your equipment, or you need to find a buyer for your parts inventory, contact me directly or go to our website. We have a small inventory listed in our eBay store. If you have a wish list, please feel free to send it to me and I can run it against our current stock. We do repairs. Broo.