Hoover UH70210 Windtunnel Series Exhaust Carbon Filter Single Part # 902404001 Hoover UH-70210 Series Wind-tunnel Upright Vacuum Cleaner Exhaust Carbon Filter Fits Models : UH70210, UH70100, UH70215, UH70211, UH70212, UH70605, UH70102, UH70240, UH72600, UH70241, UH70210PDI, UH70817, UH72600W. Genuine Part # 902404001, 19399495