Mercury - Lightning E.T. Racing Propeller - 3-Blade - 150 - 300 HP - 14.5 Dia. - 30 Pitch - 48-849506L62 The Lightning E.T. is Lab Finished and features over-the-hub exhaust. Applicable for lightweight bass boats, tunnel boats. and outboard drag racing. The Lightning E.T. racing propeller fits 150 - 300 HP Mercury outboard models.