Mercury 8M0151239 Enertia Stainless Steel 14" Diameter X 19 Pitch Propeller The Mercury Enertia Stainless Steel propeller is designed to improve both top speed and acceleration on center consoles, high-horsepower pontoons, and sterndrive runabouts. Constructed of Mercury's revolutionary new X7 alloy allows for a 30% strength increase and 4 times the durability of conventional steel. These high quality USA made props feature advanced engineering that are created and completed in Fond Du Lac, Wisconsin. The Performance Vent System allows you to vary the exhaust hole size to help eliminate a sluggish performance or to compensate for changes in load altitude. The Enertia Stainless Steel is Mercury's top performing pontoon propeller. It fits 135 HP and above outboards and Alpha One and Bravo One sterndrives. Product Features: Design: The revolutionary Mercury X7 alloy boasts four times durability and 30% strength increase compared to conventional stainless steel; Production: Created and completed by Mercury engineers and employees in Fond du Lac, Wisconsin, USA.; Fine Tuned: Performance Vent System allows for custom tuning and venting of your propeller to match your engine; Specifications: Diameter: 14; Pitch: 19; Rotation: Standard (Right Hand); Number of Blades: 3; Performance Vent System (PVS) : Yes; Material: X7 Alloy; Hub: Flo-Torq II (Sold Separately); Supersedes: 8988998A46Unsure if this prop is right for you? Use our Propeller Finder to ensure you have the right propeller for your boat!//