Akron Brass StreamMaster II [3487] Manual Monitor with AVM 2000 GPM (7600 LPM). The industry leading StreamMaster II (SMII) manual monitor is now available as a complete package with a valve manifold to control the flow of water and allow for extension of hose lines from a platform or ladder.  The SMII with AVM is a compact, lightweight total solution that comes ready to install on the apparatus.  There is virtually no additional friction loss through the main valve which provides advantages over a butterfly valve when you need to get the most flow possible from your aerial device. Standard configurations include a 2 ½” discharge elbow with NH threads for connection to a hose line.