The Exair 1/2" NPT No-Drip Internal Mix Atomizing Spray Nozzles mix liquid and air inside the nozzle. When the compressed air supply is shut off, the no-drip nozzle seals off the flow of liquid eliminating the possibility of drips. The nozzles are available in four patterns: narrow-angle round, wide-angle round, flat fan, and 360-degree hollow circular pattern. They are for pressure fed applications that don't require independent air and liquid control. The nozzles are fully adjustable to minimize air and liquid consumption and have interchangeable liquid and air caps. They are also available in 1/8" NPT and 1/4" NPT and are CE compliant.