The Eureka 63073C is the OEM dirt cup filter for Eureka bagless upright vacuums in the 4700, 5500, and HP5555 series. The filter sits inside the dirt cup assembly and captures fine particles before airflow reaches the motor.

Replace when the filter shows visible clogging or suction begins to drop. Fits Eureka models in the 4700, 5500, and HP5555 families. OEM part number 63073C.