Replace your old worn-out flapper scupper with the new Flow-Max positive sealing ball scupper. Large 1-1/8" exit hole allows 70% more water drainage than its nearest competitor. Multiple mounting holes make retrofitting to your original hole pattern quick and easy - no filling holes or re-drilling. When submerged, neutral buoyancy ball ensures ball won't float up and allow water to enter the boat.
• Mounts to outside of transom; retrofits all hole patterns
• Easy twist-off design makes cleaning out debris a snap
• Stainless steel security pin provided for added safety
• 3" dia. x 2-1/2" high
• Meets all ABYC standards