Solas Rubex HR4 propellers provide great stern lift and acceleration. With the prop's high rake and cupped blade design, the HR4 prop offers powerful thrust and very smooth performance. Ideal for increased speed and economy in the mid-range. Constructed from high chromium stainless steel for long-lasting use. Propeller and Hub Kit sold separately. This Rubex Propeller is the prop housing and blades only.• Prop Series D• Solas Rubex Part #: 9454-130-21• 4-Blade Stainless Steel• Diameter: 13"• Pitch: 21"• Standard left hand rotation High rake and cupped blade design Hub kit required | Rubex HR4 4-Blade Propeller, Exchangeable Hub / SS, 13 dia x 21, LH