Cooling and heating Bryant

We have removed the blower access door and the small panel that covers the cylindrical conduit but we can not locate the filters? Is the filter reviewing our air intake grille located in the ceiling of our hallway. After looking around, I learned – The chances filter is external to the unit. Most likely is a filter screen in the return or possible filter frame near the entrance of the unit return. If it is a unit of flow until it could possibly be in the blower compartment. See page 6 and 7 in the attached link.

Bryant Heating & Cooling Commercial 2013-10-24T05: 03:33. 2013-10 000Z-24T05: 03:33. 000Z Syndication of this video was restricted. Bryant Heating & Cooling TV Commercial "Whatever It Takes'