Flow-Max positive sealing ball scupper. Easy twist-off design makes cleaning debris a snap. Simply twist counterclockwise to remove ball cavity, clean out and twist back on. Stainless steel security pin provided for added safety. Multiple mounting holes make retrofits quick and easy - no filling holes or re-drilling. Neutral buoyancy ball insures ball won't float up and break seal. Meets all ABYC standards. Includes a #4 x 1/4" Phillips Pan Head stainless steel screw.
Seal slotted to fit over 1-1/4" motorwell hole/tubes.
3" Diameter by 2-1/2" Height.
Note:Must be installed above the waterline. Does not coming with mounting screws.