Haskel Refrigerant Pumps are air-driven positive-displacement piston pumps designed for safe, efficient transfer, recovery, or recharge of refrigerants in HVAC and industrial applications. These pumps operate solely on compressed air, producing high pressures and the ability to pull a vacuum, while generating minimal heat and requiring no electrical power or lubrication in the gas section. They are lightweight, portable units that handle both liquid and vapor phases of refrigerants, making them suitable for refrigerant recovery, fluid transfer, and environmental compliance tasks.