An FRL unit is comprised of a filter (F), regulator (R), and a lubricator (L). They are often used as one unit to ensure clean air in a pneumatic system but can also be used individually. FRL Units ensure clean air delivery to pneumatic system parts hence system blockage may be avoided. Lubrication causes better life of parts. Regulator devices avoid pressure drop or rise so that leakages and parts damages may be avoided. Equipment Lifetime may increase.