OEM Yamaha Outboard Stainless Fuel/Water Separating Filter Assy MAR-SPRTR-HD-SS;

10-Micron Fuel/Water Separating Filter Assembly with Stainless Steel Head.
They are a primary line of defense against ethanol-related fuel system issues. Highly recommended for all two stroke and four stroke EFI outboards and two stroke HPDIs. Also excellent for carbureted engines. New, improved 10-micron filter provides superior filtration ahead of the engine's onboard filters and injectors. Large filtering and water capture areas maximize filtration while maintaining adequate flow rate for larger engines.