Clamshell Hull Cover

Problems This Product Solves

• Seawater Backflow: The curved deflector structure effectively prevents seawater from flowing back into the hull through drain ports during rough seas or high-speed operation.
• Increased Water Resistance & Drag: The hydrodynamic clamshell shape guides water flow smoothly around the hull, reducing drag and improving fuel efficiency.
• Hull Surface Damage from Discharge: Directs wastewater cleanly away from the hull, preventing staining, erosion, and surface damage caused by uncontrolled discharge.
• Corrosion & UV Degradation: Made from premium ABS plastic that withstands saltwater corrosion, UV exposure, and temperature extremes without cracking or yellowing.
• Loose or Unstable Mounting: Evenly distributed multiple mounting holes spread stress across the hull surface, preventing loosening or deformation from single-point stress.
• Difficult Installation: Simple screw-mount design with included hardware allows quick, secure installation without specialized tools.

Key Features

• ABS Material: Able to withstand the impact of seawater without easily breaking or deforming.
• Curved Deflector Structure: Effectively guides water flow, reduces water resistance, and prevents seawater backflow.
• Easy to Install: Evenly distributed multiple holes enhance stability, preventing loosening or deformation caused by single-point stress.
• Available in White and Black to match your vessel's aesthetic.
• Includes mounting screws in the package.

📐 Size Guide

Model Length *(H)Width *(W)Depth*(D)HoleDiameter

Small 14.8 cm *7.4 cm * 6.2 cm * 0.53 cm

（5 .83 in) * ( 2.9 in) * (2.44 in)

Medium 21.5 cm * 10.5 cm * 6.5 cm * 0.53 cm

(8.4 in) * (4.13 in) * (2.56 in)

Large 24 cm * 13.5 cm * 7.4 cm * 0.53 cm

(9.45 in) * (5.3 in) * (2.9 in)

Round Head18 cm * 8.1 cm * 5.3 cm * 0.53 cm

(7.1 in) * (3.2 in) * (2.1 in)

* Black color available in Small size only. White available in all sizes.