Racor - 60 GPH Gas Inboard/Outboard Filter With Metal Bowl - B32021MAMInboard or outboard engine protection for a smoother operation and longer engine life, these filters easily spin onto the existing filter heads. Features a high capacity 10 micron Aquabloc II element that removes 99% of free water and sediment. Clear Bowls: Use for outboard and above deck installations. Metal Bowls: USCG regulations require use of flame resistant metal bowl below deck.