Mercury - Parts book - FOB4145 Blue Sea Systems Toggle Switches 25" x 17 Pitch -

25" x 17 Pitch - EX-1417-L - 31501722

3" x 21" Aluminum Propeller is a clear winner

Aluminum performs especially well for boaters who switch between freshwater and saltwater or who keep their boat in a marina where stray currents can appear without warning

viscosity stability

but the parts that quietly influence how well the engine breathes

Mercury - Parts book - FOB4145 Blue Sea Systems Toggle Switches 25" x 17 Pitch -This product has been superseded by: FOB4096 Parts bookWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.