| Weight | 16 lbs |
| Dimensions | 23 in. x 2 in. |
| Pump Ratio | 3:1 |
| Air Pressure Operation Range | 20 PSI to 140 PSI |
| Air Consumption | 10 SCFM |
| Maximum Fluid Pressure | 420 PSI |
| Motor Diameter | 3.5 in. |
| Motor Stroke | 4 in. |
| Flow Rate | 2.7 GPM |
| Air Inlet Size | 3/8 in. NPT |
| Air Thread | Female NPT |
| Fluid Outlet | 3/4 in. Female NPT |
| Fluid Inlet | 1 in. Female NPT |
| Seal & Wetted Materials | Aluminum, Steel, Polypropylene, PTFE |
| Noise Level | 80dB |
Samson's Pump Master 4 Series 3:1 Stub Pump with Bung Adapter is best used for gear lube, hydraulic fluid, transmission fluid, and synthetic/mineral based oil. It acts as a double acting air operated pump with medium pressure and a high volume buzzer, designed for dispensing lubricants in medium size installation applications.
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