The polypropylene piston hand pump is an economical, light-duty pump for transferring DEF out of a 55 gallon drum. The pump discharges product on the down stroke and will deliver approximately one gallon per 11 strokes. Unit comes complete with suction tube. The pump will attach to 2″ FNPT. This unit comes complete with a Micro Matic stainless steel 4 pin dispense coupler.