GROCO 3/4" Bronze Electric Flanged Seacock - 12V3 4" Bronze Electric Flanged Seacock 12V Features: Motorized (12V or 24V) valve operation for seacock sizes 3 4" to 3" (4" and 5" available soon) Manual valve operation if power is lost Automatic operation feature prevents engine flooding Requires less than 1 amp of power Gearbox is IP 67 rated and CP 712 compliant NMEA2000 ready UL listed seacock includes grease zerk fitting for lubrication Push button control from the engine room with basic E valve;