Eureka Qty. 1 2 3 4 5 6 7 8 9 10 Add to Cart Genuine Eureka Exhaust HF9 Washable HEPA Filter Manufacturer Part No.: 61510-4 - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available. This is a washableHEPA filter. Fits the Victory and Whirlwind 4300-4400 Series