Fai Filtri FCS Series Hydraulic Filters are high-efficiency, in-line spin-on filters designed for hydraulic and lubrication systems requiring precise contamination control and simplified maintenance. Engineered for flow rates from 10 to 360 l/min and operating pressures up to 12 bar, the FCS Series offers exceptionally low pressure losses, long element life, and reliable performance even under cold-start or high-differential conditions. Each filter features new-generation “A” filter elements made of reinforced inorganic microfibers that ensure absolute filtration from 3 to 25 microns (βx ≥ 200) and strong resistance to deformation and contaminant release. A quick, tool-free cartridge replacement system allows easy servicing in any operational setting. With optional by-pass valves, pressure or vacuum indicators, and a wide range of GAS, NPT, SAE, or flanged couplings, these filters integrate smoothly into both suction and return lines. Compatible with hydraulic oils, lubricants, fuels, glycol water, emulsions, and synthetic fluids, the FCS Series delivers dependable filtration and uptime for industrial, agricultural, and mobile equipment.