Elkhart Brass Select-O-Matic Master Stream Low Pressure X-Stream Nozzles are powerful and versatile. The Select-O-Matics are the world’s finest and most popular master stream nozzle that adjust automatically to fluctuating flows to maintain an effective stream and sufficient pressure. Lightweight, compact styling makes Select-O-Matics easy to handle, too. All Select-O-Matics are ideal for use with portable monitors, deck guns or elevated platforms and are excellent for AFFF or Class A Foam application. Also are available in brass construction for industrial applications.