Size & Package: Include 30pcs mist nozzles with 0.004inch (0.1mm) Orifice, Applies to UNC1024 thread specifications for easy installation on various misting systems and devices. Durable Brass Misting Nozzle: Durable brass material ensures long lifespan, rust resistance, corrosion resistance, great for outdoor use. Each brass spray nozzle comes with leakproof, selfsealing Oring; no tape or sealant is required. Multipurpose Use: Widely used in outdoor cooling systems, agricultural irrigation systems, greenhouse maintenance, landscaping, small fountains, gardens, patios, sheds, dust removal, lawn spraying systems, artificial misting, and humidification areas. Attention: Slowly adjust your pressure valve to avoid mister replacement nozzles bursts. A filter device can be installed at the water inlet pipe to avoid clogging. Advantage: Energysaving and watersaving, suitable for lowpressure misting systems. Achieves ultrafine mist with liquid pressure not easy to clog, ensuring efficient mist distribution.