Suits medium and larger Outboard Motors and Sterndrive legs with conventional side mounted lower unit (gearbox) water intake grilles. Dual feed water feed to ensure sufficient supply to larger engines. Rectangular cups to better match water intake grille shape. The distance between leading edge of the outboard lower unit to centre of the intake grille should be no more than 22 cm. Not suitable for low-water / dual pick-up Outboards.