The 4 pivoting wheels allow the operator to easily guide the cleaner while the heavy duty nylon brush ensures the high pressure is confined to the surface cleaning area

AR does not mark the difference on the pump other than this hole

Outlet: 3/8" FPT (3/8" MPT with unloader)

Unloader built into pump head

Comfort technology designed trigger system actually helps the operator keep the trigger open

General Pump DFSCP20GZ 20” Flat Surface Cleaner 4000psi flow-4gpm The 4 pivoting wheels allowGeneral Pump DFSCP20 20" commercial flat surface cleaner for power washers. 4000psi Maximum Rated Pressure Dual Nozzle Arm 3 to 8 gpm 180 F Quick connect inlet