Click image for larger version.  Name: IMG_0244.JPG  Views: 127  Size: 60.3 KB  ID: 91287 We have made a bulk buy of Respironics Millennium concentrator filters. We have packaged 9 filters together (enough for 3 complete filter changes) and are selling them for just $26.99 including FREE FIRST CLASS SHIPPING. Included are (3) pre-filters, (3) cabinet filters and (3) primary filters. CLICK HERE TO PURCHASE>