Product Overview
For work involving marine hardware, electrical, plumbing and boat outfitting, Thru-Hull w/Scupper Valve – Injection Molded Acetel from Sea-Dog provides a focused option for servicing or upgrading marine hardware, electrical, plumbing and boat outfitting.
Thru-Hull with Scupper Valve – Injection Molded Acetel This Thru-Hull Scupper Valve mounts through the transom and offers a water exit for boats with self-bailing cockpits. well suited to above the water line drainage. Valve features a soft black flapper that seals to prevent backwash.
Product Details
- For use with 1-1/2" hose.
- Compatible with most self-bailing applications.
- Constructed of injection-molded acetal.
- Installs with four #6 FH fasteners (included).
Fit & Selection Guidance
Use manufacturer part number 520510-1 to verify the exact item. Confirm dimensions, voltage, capacity, material, mounting pattern, connection type and model compatibility where applicable. Replacement parts should be matched to the exact parent equipment or system whenever the manufacturer specifies one.
For installation-sensitive products, follow the manufacturer’s current instructions and the applicable marine electrical, plumbing, structural or safety requirements for your boat.












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