Mercury - Enertia ECO Propeller 16" Diameter x 17" Pitch Left-Hand Rotation 3-Blade Stainless Steel Polished Finish 8M0151250. Overview. There's a certain peace that comes from knowing your boat is running at its best - smooth, efficient, and unbothered by distance. The Mercury Enertia ECO Propeller ( 8M0151250) was designed for that feeling. It's made for boaters who love long runs, quiet cruising, and getting the most out of every drop of fuel. You'll feel the difference in how easily the boat