In addition to lasting twice as long as standard door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments. They are UL Listed for three-hour fire doors. Also known as passage knobs, they do not lock.

Select a knob with the correct backset distance (the distance from the door’s edge to the center of the knob's mounting hole) for your door. Latch bolt projection is the length the latch bolt extends from the door's edge.