Fog Nozzle with Ceramic Orifice and Anti-drip. Thread Size: 3/16¿¬s, 10/24 and 12/24UNC, and 3/8",1/4. Body Material: Brass or Brass Plated Nickel or Stainless Steel. Orifice diameter: 0.10mm, 0.15mm, 0.20mm, 0.25mm, 0.3mm, 0.4mm, 0.5mm. The advantage of our Misting Nozzle with ceramic orifice is wear resistance and very longer using life better than stainless steel orifice.