Fine, low flow atomizing stainless steel nozzles that can be hand tightened and seal with an O-Ring. These .012/.30mm nozzles are ideal for use in high pressure systems in arid climates. Typical flow rate is .028 gpm at 1000PSI. This nozzle is great for humdification on patios. This nozzle is easily cleanable and provides years of clog free misting.