An Air FRL (Filter Regulator Lubricator) is a pneumatic unit that combines three components to prepare compressed air for use: a Filter removes dirt, water, and oil; a Regulator maintains a consistent, safe pressure; and a Lubricator injects a fine oil mist to reduce wear in pneumatic equipment. The FRL unit ensures the compressed air supply is clean, stable, and properly lubricated, preventing damage and extending the life of pneumatic tools and machinery.