DPFS005 FTI Drum Pump Tube Exploded View Diagram Repair Parts Breakdown. Finish Thompson PFS-27 PF Series Stainless Steel Sealless, High Performance Barrel Pumps PDF Manual. Replacement Coupling Insert, Coupling Half, Motor, Bearing Assembly Kit, Lip Seal. Lock Washer, Screw, Intake Tube Assembly, O-Ring, Inner Tube, Shaft Sleeve, Bottom Bearing. Impeller Housing, Shaft, Impeller Assembly, Housing Cover.