This plug was designed to address freshwater loss that occurs from water slashing out through the poorly designed gravity fill port when the vehicle is in motion. The plug makes use of a single "O" ring to seal the port. While designed to address the more pronounced issue with the "J" floorplan the plug will work on any View/Navion with the same gravity freshwater fill port.

Note: Requires the removal of the OEM rubber disc on the inside of the fill port door in order for the door to shut properly.