Operation Pressure:20-70kg/Cm,Flow Rate:80-145ml/Min,Working pressure:30-450PSI,Best clogged mister nozzles replacement for DIY homemade low pressure greenhouse,umbrella,patio mister systems,outdoor cooling systems 10/24 UNC thread,0.012'(0.3 mm)orifice,stainless steel brass body,self-sealing o-ring included,leak-proof no tape or sealant is required Slip lock quick pushing,fit for 1/4 inch misting hose Hard water, and calcium may clog the fogger nozzles,Clean nozzles periodically by soaking them in vinegar & warm water solution,Replace sediment filters(not included),Remove them at of the season Colour:Black Material:copper Product size:4*0.7cm Package Contents: 10 x Slip-Lok Misting Nozzle Tees 12 x Nozzles 1 x Plug Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.