The MS3057-6A-1INCH is a bulkhead union connector manufactured by Crown. It features a one-inch hex size and is designed to be used as part of a tube, pipe or hose system. The connector is made from 304 stainless steel, offering superior corrosion resistance and durability. It also features a jam nut that helps ensure a leak-free connection. The MS3057-6A-1INCH is available in either male or female threads.