"50:1 ratio pump has 13in. tube for straight or tapered 5 gallon open head pails. Requires 70-100 PSI. Air inlet is 1/4in. NPT. Includes pump, cover, air coupler, follower plate, 6 ft. high pressure hose, swivel and control handle. 1/4 in. NPT grease outlet Fits 35-50 gallon pail 17 3/4 in. tube 1 5/32 in. pump tube diameter Approximate capacity is 2. 2 lbs./min. free flow with 100 PSI air pressure" |