BGN1179: Features: -Misting nozzle.-Misting nozzle.-Most water conservative, and efficient mist nozzle available today.-That facilitates rapid evaporation and the best possible cooling.-Requires simple maintenance, wiping periodically.-Or soaking to remove mineral deposits may accumulate with usage.-0.42 thread is industry standard.-Minimal water use, only uses 0.5 gallon of water per hour per nozzle.-Interchangeable, just screw into any 0.42 threaded mist nozzle opening. Construction: -Only uses one half gallon per hour per nozzle and features sturdy brass and stainless steel construction.-Nozzle design is also unique, and engineered to form a perfect 24 inch cone pattern.