Fai Filtri FST Series Hydraulic Filters are advanced spin-on filters engineered to maintain precise contamination control in hydraulic and lubrication systems operating under demanding industrial and mobile conditions. Designed for flow rates up to 300 l/min and pressures up to 12 bar, these filters combine compact construction with tool-free cartridge replacement to ensure rapid maintenance and minimal downtime. Each unit features new-generation “A” filtering elements made from reinforced inorganic microfibers, providing absolute filtration from 3 to 25 microns (βx ≥ 200) and exceptional resistance to deformation and contaminant release. The durable assembly - comprising a galvanized-steel body, aluminum head, and optional by-pass valve or pressure indicator - ensures long service life even in harsh environments. Compatible with hydraulic oils, lubricants, fuels, glycol water, emulsions, and synthetic fluids, the FST Series delivers consistent performance, safety, and reliability. Built to international ISO standards, these filters represent a proven solution for hydraulic, lubrication, and power-transmission systems across industrial, agricultural, and construction sectors.