Check the listing for details. TELEDYNE HASTING HFC-303 MASS FLOW CONTROLLER 600 SCFH/HELIUM NEW. Condition: New. Listed at 399.85 USD. TELEDYNE HASTING HFC-303 MASS FLOW CONTROLLER 600 SCFH/HELIUM NEW TELEDYNE HASTING HFC-303 MASS FLOW CONTROLLER 600 SCFH/HELIUM NEW Click images to enlarge Description PER PICTURES. NEW. TERMS OF SALE This item is offered in as is condition. No guarantee or warranty is offered or implied. Item is shipped as displayed in the pictures, unless otherwise specified. Buyer is offered a 30 day return privilege. Buyer must contact seller before returning item for an authorization return code or refund may not be granted. Buyer is responsible for return shipping cost. px7 Pictures sell! Auctiva offers Free Image Hosting and Editing.300+ Listing Templates! Auctiva gets you noticed! The complete eBay Selling Solution. Track Page Views WithAuctiva's FREE Counter