Quick view Nilfisk NF1406879500 exhaust filter kit 5 pack for Clarke Viper and Advance machines $35.48 $32.58 PK/5 DRCT NF1406879500 $35.48 $32.58 Nilfisk NF1406879500 exhaust filter kit 5 pack for Clarke Viper and Advance machines Add to Cart Detailed View