Ram 50:1 Pump Cover Follower. Internal muffler & an innovative airflow design help Alemite RAM Pumps meet OSHA noise requirements. Orientation of material outlet and air inlet can be easily adjusted 360. Pumps are easy to use and designed to operate with or without a lubricator. Air motor and spool valve are easily accessible without removing the downtube. Flexible follower works with straight and tapered containers. Internal muffler and innovative airflow design help pumps meet OSHA noise requirementsOrientation of material outlet and air inlet can be easily adjusted 360Pumps are easy to use and designed to operate with or without a lubricatorAir motor and spool valve are easily accessible without removing the downtubeFlexible follower works with straight and tapered containers