Add a knife to your Pluribus row unit with this simple bolt-on kit. 
 
Key Features:
Fits all Pluribus row units.
Will need to switch coulter arms to welded containment arms (200xxx)
Direct bolt-on
Fits B33A Mole Knifes
 
Specifications:
3 Depth Positions 4.5" , 5.75" and 7" deep
Available with B33A 3/8" Liquid Tube, or B33A 1-1/2" Dry Tube. 
More knife options available (Call for more info)