These replacement Z synthetic upright paper bags (Part #63881A10) are made for the Eureka SC9050 and Eureka 2416. The synthetic media captures dust and allergens while keeping exhaust air clean. Sold five bags per pack. As a bag reaches capacity it restricts airflow, which cuts suction and forces the motor to work harder. An overfilled bag can also leak fine dust past the seal. Changing to a fresh bag at about two-thirds full keeps suction strong and filtration reliable. Fits: Eureka SC9050 and Eureka 2416 Construction: synthetic media for micro-filtration Quantity: 5 bags per pack; also available as #310SW Tip: replace at roughly two-thirds full and keep spares on hand Seat the collar on the machine's inlet for a quick, clean change. Verify your Eureka model before ordering so the bags fit and seal correctly.