Check the listing for details. MKS 1179B00752CR14V Mass-Flo Controller. Condition: New. Listed at 496.77 USD. Mara Industrial ID: 135144-157803MKS 1179B00752CR14V Mass-Flo ControllerPN: 1179B00752CR14V500 SCCM/H2 MKS Instruments VitonFREE SHIPPING DISCLAIMER: In order to offer Free Shipping, as well as faster delivery options, eBay's technical requirements force us to select a carrier. We reserve the right to change carriers in order to get the best price and options (Applies to free shipping only, if you select another option we will ship with that option!). If you have trouble receiving packages from a particular carrier due to location or some other circumstance, please notify us in your order note. Free shipping does not apply to products over 130 lbs or that have other large dimensions requiring special freight handling. For questions, alternate payment or shipping methods, please contact us!Immediate Service Available: M-F 9AM to 5PM EST