1. It is designed to provide excellent directional performance typically in 4 way airfow pattern
2. It is easy for insatallation with its removable core or OBD if needed
3. It also provides options for 1,2&3 way airfow patterns
4. It is makd form Aluminium, Frame have punched in corners,in addition to weld joints,Welded blade core.
5. The core is removable with safety cord/chain under
6.Oppsite Blade Damper is for optional.
