Perfect for air outlets or demisters in rally/race cars or indeed anything that requires ducted hot/cold air.These high quality black plastic Adjustable Dash Air Vents feature a rocking (push to open, push to close) outlet, which can be rotated a full 360 degrees to enable air to be directed in any direction required. Used in many production vehicles these vents can also be used as a better quality and priced alternative to the Eberspacher and Webasto outlets.The main fascia is the same no matter what size ordered, the only difference are the sized 'top-hats' that snap into the back of these units that fit your selected hose size.      Overall diameter of unit: 84mm (3.3")      Hole size required: 76.3mm (3")      Stepped tabs enable fitting to panels up to 5mm thickSold singular (each).