Knob Functions:
 Passage (Hall and Closet | 720, 200, F10, J10) - Both knobs are always free (non-locking function). 
 Privacy (Bed and Bath | 730, 300, F40, J40) - Both knobs are locked or unlocked by emergency key on outside or turnbutton inside. 
 Keyed Entry (Front and Back | 740, 400, F54, F51, J54) - Both knobs are locked or unlocked by key outside or turn button on the inside. 
 Half Dummy (788, 488, F170, J170) - Single knob with no operation. 
 Select preferred style (19 styles available)  and function (4 functions available) to view detailed product information.