Behind the Grill Bug Screen for 2011 2012 2013 2014 2015 2016 Ford F250 F350 F450 F550 Truck Our screens keep Bugs andDebrisOUT OF YOUR RADIATOR! Screen ties on the top of the radiator and bunges on the bottom of the frame. This screen is installed behind the grill! This screen is veryefficientand cost effective, with very little air flow restriction