Large three inch air motor has more power to create better flow and performance Easy to maintain with a self-cleaning pilot valve which increases reliability in dirty air environments Typical applications include grease transfer in automotive dealerships, fast lube centers, service shops and lube trucks Includes 50:1 grease pump, 6 ft. hose kit, follower plate, drum cover, grease valve, and z-swivel Complete pump package for 35 lb portable grease drum