Mercury Black Max Propeller 13-3/4 x 15P RH48-77342A45Mercury Black Max Propellers are well-balanced aluminum props. These propellers are a great choice for engines less than 250 HP with top speeds less than 50 MPH/80 KPH. Mercury Black Max propellers are made with Mercury’s unique patented Mercalloy aluminum. This unique material allows Mercury props to have thinner blades that create less drag, resulting in optimal performance and durability.Features:Easy to maintain and repairGood overall performance and valueRecommended for boats with top speeds less than 50MPH3 Blade Die-Cast AluminumSpecifications:Diameter: 13-3/4Pitch: 15Rotation: Standard (Right Hand)Number of Blades: 3Material: Mercalloy AluminumEquipped with Flo Torq SSR Hub kit 8M0150151