Core Performance Features Stainless steel mesh filter media, reusable Constructed with 304 stainless steel woven mesh filter media, reusable through cleaning, significantly reducing long-term costs; oil-resistant, corrosion-resistant, high-temperature resistant, with no risk of media shedding or fiber migration, suitable for harsh operating conditions. High flow rate with low flow resistance, ideal for coarse filtration applications 75μm filtration precision is specifically designed for coarse filtration at hydraulic system suction and return ports. It maintains extremely low flow resistance even under high-flow conditions, preventing suction vacuum and oil supply issues, thereby protecting core components like hydraulic pumps. High-strength impact-resistant structure Integrated metal end caps + perforated support frame design withstands high-pressure hydraulic shocks and equipment vibrations, suitable for medium-to-high-pressure hydraulic circuits. Ensures structural stability throughout the lifecycle with no risk of deformation or damage. Standardized universal compatibility Fully compatible with Donaldson HPK03/FPK04/HPK04 series OEM filter housings, enabling seamless replacement of same-size, same-specification filter elements. Easy installation and maintenance with no need for equipment interface modifications. III. Compatibility & Cross-Replacement OEM direct compatibility: Donaldson HPK03, FPK04, HPK04 series in-line high-pressure filters Domestic alternative equivalents: Same-size 79×208mm, 75μm precision, stainless steel mesh hydraulic filter elements, compatible with same-specification housings. IV. Core Application Scenarios Primary applications: Coarse filtration in suction circuits and pre-filtration in return circuits for industrial hydraulic stations, metallurgical equipment, mining machinery, construction machinery, injection molding machines, and marine hydraulic systems; high-flow, low-pressure hydraulic circuits. General operating conditions: Pre-filtration of large particulate contaminants to protect downstream fine filters and hydraulic system precision components. Also suitable for high-flow primary purification of diesel and lubricating oil.