Mercury - Enertia ECO 3-Blade Stainless Steel Propeller 16" Diameter x 22" Pitch Left-Hand Rotation 3-Blade Stainless Steel 8M0151260. Overview. There's a special kind of satisfaction that comes when your boat hits its sweet spot - when power, speed, and efficiency come together in perfect balance. The Mercury Enertia ECO 3-Blade Stainless Steel Propeller (8M0151260) is built for that exact moment. Designed for boaters who love long runs, wide-open water, and smart fuel savings, this prop transf