The funnel valve allows the user to stop the filling process even when there is fluid still in the funnel to help prevent overfilling the tank. Designed to screw directly onto the AdBlue tank filler neck where the tank is fitted with a vertically accessed filler Features and Benefits Air breather pipe to allow air out of the tank, prevent splashing caused by bubbling, and help avoid overfilling Allows safe transfer of Adblue from storage containers to the vehicle tank Simple to use, equipped with a manually operated anti-spill valve Equipped with a lid to keep out dirt and debris when not in use Typical Applications Boot floors Under bonnet areas