Check the filter housing or the equipment manual for the exact model number of the EPPENSTEINER filter element. Purchase the appropriate replacement filter element from EPPENSTEINER’s website, authorized distributors, or local suppliers. Ensure the system is turned off, depressurized, and isolated. Wear necessary personal protective equipment (PPE). Open the filter housing according to the manufacturer’s instructions. Carefully take out the old filter element, noting its orientation and installation method. Insert the new filter element, ensuring it is properly seated. Check that O-rings or seals are intact and correctly positioned.