This Fire Hose Water Nozzle turns a stream of water into tiny droplets, creating a larger surface area for smothering a fire. It has a 1" National Hose (NH) threaded inlet for attaching to a fire hose. It is made of aluminum for resistance to corrosion and tarnishing. The stem adjusts the flow from a straight stream to fog for multipurpose use.This fog nozzle is suitable for use in small-scale fire fighting, as well as garden or green house applications, dust suppression, and evaporate cooling.