... RHAM: Stationary Heavy Wall Barrel, Top Anchor, Mechanic Seating, Rod Pump 2) RHBM: Stationary Heavy Wall Barrel, Bottom Anchor, ... Mechanic Seating, Rod Pump 3) RHAC: Stationary Heavy Wall Barrel, Top Anchor, Cup ... Seating, Rod Pump 4) RHBC: Stationary Heavy Wall Barrel, Bottom Anchor, Cup Seating, Rod ...