WindTunnel Bagless
The WindTunnel Bagless Twin Chamber (w/tower pleated HEPA filter) is the WT that diverts suction from base to hose when handle is upright, or vice-versa.
btw, I wish Hoover still make the old style turbo brush because the one shown is JUNK. And Hoover should put PLEATED HEPA filter on BOTH Self-Propelled & Non S/P WTs.
Why did they change for the not-so-good changes?