Modular Filter Regulator AW10-B - AW40-B SMC’s AW-B series of compact filter regulators combine a filter and regulator into one unit saving on space a piping. Part of SMC’s modular air prep range the AW-B can be combined with other components such as a lubricator, soft start valve and mist separators of similar body size to meet the requirements of most air preparation systems. These filter regulators are available in a selection of body sizes from 10 to 40 with piping from G1/8” to G1/2” (also available as M5x0.8). Various options are available including normally open or normally closed autodrain function, round or square pressure gauges and panel mounting kits.