50:1 AIR-OPERATED PORTABLE GREASE UNIT 120 LB. (16 Gal.) 50:1 Air-operated grease pump only for use with 16-gallon (120 lb.) containers.. 50:1 pump. 70-100 PSI operating pressure. Pumps up to 1.76 lbs. per minute.. 82 dB noise level. Carrying handle. 13’ delivery hose.. 15.10” drum cover. Control valve. 14 1/2 Follower Plate.. Ship weight 38 lbs.. 50:1 pump. 70-100 PSI operating pressure. Pumps up to 1.76 lbs. per minute. 82 dB noise level. Carrying handle. 13’ delivery hose. 15.10” drum cover. Control valve. 14 1/2 Follower Plate. Ship weight 38 lbs. 8620A