The air-operated grease pump is an essential tool in the industrial sector, with a high working pressure of 75:1. This pump is specifically designed for use with 400 lbs drums, making it perfect for heavy-duty applications. With its air-operated mechanism, the pump provides a reliable and effortless way to transfer grease from the drum to the desired area. This pump is highly efficient and can handle various types of grease, making it a versatile choice for industrial settings. Its sturdy construction and powerful performance make it a valuable asset to any workplace that requires frequent and large-scale lubrication processes.