The 8641-2 part of Teledyne is a heavy-duty filter for removing contaminants from hydraulic fluids in industrial and agricultural operations. It has a stainless steel construction and is designed to increase filter life. It has a maximum working pressure of 7,500 psi and a maximum temperature of 300°F. It is also used to filter fuel and other fluids, and can be used with various types of filtration medias such as cotton, cellulose, and paper-based. Additionally, it includes an advanced two-stage filtration system for removing both solid and liquid contaminants. It also has a built-in bypass valve that can be opened or closed to maintain consistent pressure and filter performance.