Mercury - Enertia 3-Blade Stainless Steel Propeller 13.5" Diameter x 22" Pitch Right-Hand Rotation 3-Blade X7 Stainless Steel Polished Finish 8M0151245. Overview. There's a moment every boater loves - when the throttle opens up, the hull lifts cleanly, and everything just feels right. That effortless surge across the water, that steady grip as you power through the chop - that's the feeling you get from the Mercury Enertia 3-Blade Stainless Steel Propeller (8M0151245). Designed for speed and res