Return filters are used as process and safety filters to protect pumps and hydraulic circuits from contamination as per ISO 4406. They are available in 4 styles :

• SMP semi-immersed filters for mounting to the oil tank with external/internal filter element
• MPT semi-immersed filters for mounting to the oil tank with external/internal filter element
• MHP/MPI semi-immersed filters for mounting to the oil tank with external/internal filter element
• FRI semi-immersed filters for mounting to the oil tank or in-line, available in the single or duplex versions, with external/internal filter element

The FRI version can also be used as an in-line filter for forced lubrication or off-line systems.