Brand New BESTOOL Air Hydraulic Pump - 10,000 PSI Hydraulic Foot Pump, 1/2 Gal Reservoir Air Over Hydraulic Pump Air Actuated Treadle Foot Pump, Single Acting, Blue. The BESTOOL Air Hydraulic Pump features an internal pressure relief valve for overload protection, ensuring oil leakage prevention and hydraulic component safety. The convenient 2-stage release mechanism enables fast or metered ram return while minimizing hydraulic shock. This air-powered hydraulic pump boasts a maximum adjustable pressure of 10,000 PSI, making it suitable for all 10-ton applications. Constructed with a high-quality aviation aluminum pump core and a durable aluminum reservoir, our hydraulic ram pump is designed to withstand demanding industrial applications.The air over hydraulic pump features a user-friendly, foot-actuated design that allows for easy control and operation, saving time and effort with its powerful and adjustable pressure. The built-in internal relief valve safeguards the hydraulic components regardless of the hydraulic pressure. Designed exclusively for use with single-acting cylinders, this air hydraulic foot pump efficiently operates a wide range of industrial and construction single-acting ram applications, making it a versatile and reliable power source. All our products are brand new and sealed. We take our reputation seriously.