Vacuum Filter Receiver Series 674 The Series 674 Vacuum Filter Receiver by Dynamic Air Inc. features a full vacuum rated housing, quick release cartridge lters or bag lters with included special wear resistant inlet tting, inside grating for easier lter removal, vacuum rated discharge valve and bolted removable top for easy access. Heavy duty construction is available in mild steel, stainless steel or aluminum along with optional explosion relief panel. Bulletin 21138-T © 2011 Dynamic Air Inc. Dynamic Air Conveying Systems is a registered trademark of Dynamic Air Inc., St. Paul, MN. Corporate Headquarters Dynamic Air Inc. • St. Paul, MN USA • +1 651 484-2900 Worldwide Ofces Australia • Brazil • China • United Kingdom www.dynamicair.com