Positionable Stainless Steel O-Ring (ORB) Fittings for easy hose routing and suitable for installation in shallow splash wells;State of the Art Proprietary Sealing System offers superior resistance to repeated compression set and is designed to better withstand the harsh environment;Unbalanced cylinder with 4.8/5.7 turns lock-to-lock;For single and multiple outboard engine installations with total power to 600 HP in counter rotating application;For Outboard Use ONLY