Deluxe universal follower for use with 120 lb. (54 kg) containers for 1, 1 1/4, and 2 1/8 in. diameter pump tubes. Used with Series 20 and 40 air-operated grease pumps.  All rubber unit ensures complete grease dispensing to the bottom of dented or plastic lined drums; wipes pail or drum clean. Metal cap holds insert firmly in place, ensuring seal and maintaining vacuum.