AP Products Seal Bulb Double With Wiper BlackAP Products 018 478 35 Seal Bulb Double W Wiper Black. These seals may be used in a variety of applications including Baggage Doors, Cargo Doors, Entrance Doors, around windows and any other area where it is desired to reduce or eliminate infiltration of noise, dust, moisture or vibration. Seal Length: 35 feet. Use in a variety of applications including Baggage Doors, Cargo Doors, Entrance Doors, around windows and any other area where it is desired