Mercury - Enertia ECO Propeller 16" Diameter x 22" Pitch Right-Hand Rotation 3-Blade Stainless Steel Polished Finish 8M0151261. Overview. If you've spent enough time on the water, you know that small changes can make a big difference especially when it comes to fuel and range. The Mercury Enertia ECO Propeller (8M0151261) was designed with that in mind. It's not just about getting where you're going faster, it's about going farther without constantly watching the fuel gauge. This prop delivers t