Seat Height (H)

• seat height adjustable
• back depth adjustable
  
  

No Seat Tilt (N)

• seat height adjustable 
• back height adjustable 
• back angle adjustable
  
  

Seat Tilt (S)

• seat & back height adjustable 
• seat & bk angle adjustable
• forward seat tilt
  
  

Rocker (R)

• seat & back height adjustable 
• seat & back angle adjustable 
• forward seat tilt
• front tilt stop
• center rocking free float feature
  
  

Synchro-Tilt (E or V)

• adds 1" to seat height
• includes Seat Slider same features as R with synchro-tilt back recline w/out using a lever.