... : Stationary Heavy Wall Barrel, Top Anchor, Mechanic Seating, Rod Pump 2) RHBM: Stationary Heavy Wall Barrel, Bottom Anchor, Mechanic ... Bottom Anchor, Cup Seating, Rod Pump 5) RHT: Traveling Heavy Wall Barrel, Bottom Anchor, Rod Pump 6) RWA: Stationary Thin Wall Barrel, ... Top Anchor, Rod Pump 7) RWB: Stationary Thin Wall ...