RUPP Marine Dredge Retrieval Pulley Systems. Setup is quickly and easily when used in conjunction with their stainless steel thru-gunwale fairlead tubes (sold separately). The system includes their stainless mounting post coupled to a 57mm harken carbo pulley with integrated cam cleat and a quick release pin for easy setup and removal. Simply insert the system into your thru-gunwale fairlead tube and secure with the supplied quick release pin and it's ready to go To remove just release the pin and pull the entire system out. leaving a clean gunwale. Sold Individually Use dropdown above if you'd like to add a thru-gunwale fairlead tube (available in two sizes). The optional fairlead tubes come ready to install with fender & Lock washer and locking nut. Specifications for RUPP Marine Dredge Retrieval Pulley System: Manufacturer: RUPP Marine Size: One Size Package Contents: RUPP Marine Dredge Retrieval Pulley System RUPP Marine MI-0065-AS: Dredge Retrieval Pulley Systems