Samson 353120 Pumpmaster2 3:1 Stub Pump Drum Mount

The Samson 353120 Pumpmaster2 is a double-acting, air-operated stub pump engineered for the efficient transfer of lubricants in industrial and workshop settings. Its 3:1 pump ratio strikes a practical balance between flow rate and pressure, making it well suited for dispensing synthetic and mineral-based oils, transmission fluid, and hydraulic oil from 16-gallon drums. The height-adjustable bung adapter allows the pump to seat securely in standard drum bung openings, providing a stable and leak-resistant connection during operation.

Because it is air-operated, the Pumpmaster2 does not require an electrical connection at the point of use, which can be an advantage in environments where flammable fluids are present or electrical outlets are scarce. The double-acting mechanism ensures fluid is moved on both the upstroke and the downstroke, delivering a more consistent flow compared to single-acting alternatives. For facilities that handle routine oil changes, top-offs, or fluid transfers, this pump offers a reliable and relatively compact solution that mounts directly where the lubricant is stored.