Micro-Jet Ceramic Misting Nozzles have been the staple of Cool-Off's World Class Leading High Pressure Misting Fan Systems for over 8 years. This is hands down the best high pressure misting fan nozzle available anywhere in the World. Many customers who have purchased one of our systems choose to replace nozzles every year or two to keep their systems running like new. Combine with a new inline filter for best results and get that system back to performing like new once again. Most customers prefer the red nozzles however some customers choose green where the humidity is less than 20% average and temperature exceeds 110 Degrees regularly.