VERY100 4mm Male Threaded Brass Fog Mist Nozzle Misting Fogging Spray Sprinkler Head (10pcs) Model: 3010; Material: Brass Thread size: about 0.16"(diameter)*0.20"(length) Total length: 0.98"; Orifice: 0.01" Operation Pressure: 20-80kg/cm; Flow Rate: 80-145ml/min Minimal water use of 1/2 gallon of water per hour per nozzle