FEATURES: 
*Jackram heavy-duty hand pumps are featured with their forged construction. 
*Drop forged base and rugged welded construction prevents damage and deformation. 
*Professional choice for a wide range of industrial applications. 
*Both single and two-speed models are available. 
*Internal overload valve prevents pump from being used beyond its rated capacity. 
*Two-speed pumps provide fast pumping to meet the load with the cylinder unloaded. 
*External adjustable relief valve. 
*Carrying handles for easy portability.