10 Pack Slimline Mosquito Misting Nozzles .40mm Made in USA .015" / .40mm Oriface 10/24 threads Will Fit Most Mosquito Systems with Slimline Nozzles Anti-drip Adapter with Strong Internal Spring to Prevent Drips Internal Cleanable Pin Prevents Clogging Viton O'Ring and Non-Drip Rubber Burb Resists Chemical Reactions