FEATURES: 
*Jackram hand pumps are featured with their rugged construction and low handle effort. 
*All metal constructions with hand-size release knobs that contain anti leaking mechanism are truly suitable to industrial requirements and your daily work. 
*Both single and two-speed models are available. 
*Two-speed pumps provide fast pumping to meet the load with the cylinder unloaded. 
*Internal overload valve prevents pump from being used beyond its rated capacity. 
*External adjustable relief valve. 
*Carrying handles for easy portability.