The 50/63FLDK(N)0400-2500 dual filters are designed for hydraulic systems, separating solids from fluids and lubricating oils, with easy filter element replacement without interrupting operation. They offer in-line mounting, cyclonic filtration, high-efficiency materials, collapse resistance, maintenance indicator, modular electronic options, bypass valve, measuring port, and pressure compensation. They operate between -10°C and +100°C, nominal pressures from 50 to 63 bar, up to DN100.