WZWH012 - Wall fan 12” (3) nozzle. Perfect for small areas i.e.; one man work stations, valet areas, restaurants, the possibilities are endless! Extremely quiet, this unit utilizes high pressure (1000) PSI water mist combined with 1060 CFM of air movement to provide cooling of up to 30 degrees! NOTE: You must purchase a high pressure pump module to operate this fan.