Scanstrut PT3010 PowerTower Base Wedge 4 The Scanstrut PowerTower Base Wedge 4" enhances the performance of your radome. The Base Wedge is constructed with a tough, marine grade, UV stable wedge that angles the radar down 4 below horizontal to provide a level horizon for your radar whent the boat is underway.Product Features: Enhance the performance of your radome with the Universal Scanstrut 4 radar base wedge; 4 Base Wedge for mounting under PowerTower; A tough, marine-grade, UV stable wedge that angles the radar down 4 below horizontal to provide a level horizon for your radar when the boat is underway; Compatibility:Furuno, Garmin, Raymarine, Simrad, B&G, Lowrance and more. Click here for Scanstrut PT3010 Installation Instructions